Core Drill Segment

Choosing the Right Drills and Blades

Drilling and cutting efficiently requires the right kind of drill or blade. And, as the range of materials used on domestic and commercial environments increases, correctly matching drills and blades with materials becomes even more important. And that counts for contractors and DIY enthusiasts alike.

Drilling

Traditionally, drill bits have been made from steel. Soft, low carbon steel bits can only be used when drilling wood. High carbon steel bits are used on wood and metal, but can lose their edge if allowed to overheat.

HSS (high speed steel) bits can be used to drill a wider range of materials, including metal and hardwood, at higher speeds than carbon steel bits. For extra hardness at higher temperatures, HSS variants, cobalt steel alloys are a good choice.

Tungsten carbide (and other carbide) tips are extremely hard and can drill many challenging materials while retaining their edge. Unfortunately, they suffer from brittleness and high cost.

Coatings such as Black Oxide, Titanium nitride, Titanium aluminium nitride and Zirconium nitride applied to drill bits can extend life and provide greater heat resistance.

Diamond powder coatings are perhaps the most useful of all, providing a long-lasting, durable solution to drilling the very hardest of materials.

A diamond drill or hole cutter can generate a lot of heat, so you need to be careful not to allow it to build up or it can damage some finishes and materials. Consequently, some diamond drills are supplied with a water-cooled wet core that supplies a continuous stream of coolant for drilling materials such as flint and limestone aggregate concrete, reinforced concrete and other hard building materials.

A standard dry core diamond drill is more suited to medium and soft bricks, concrete blocks and abrasive concrete products. A tougher, superfast dry core drill will take most building materials in its stride. These include semi-engineering bricks, clay products, clay products and limestone aggregate concrete.

Cutting

There are many types of saw available, but in this article we're going to look at circular saws.

If you're looking for a good, reliable wood saw, you should consider a tungsten carbide tipped or HSS blade. For more demanding applications, you'll need to consider more advanced blades or you'll suffer tools that simply can't cut the material, or very soon get blunt and/or overheat. Diamond tipping enables manufacturers to offer a range of blades precisely matched to the requirements of cutting some of the hardest materials.

For Ceramic and Stone tiling for walls and floors, (in homes and in commercial environments), look for tile cutting blades. These will bite into these hard surfaces and provide a clean, well-finished hole. And, for other kinds of flooring, such as concrete and asphalt, there are specialised floorsaw blades.

When it comes to cutting building products such as engineering bricks, concrete and clay products a segmented universal/hard diamond blade with cooling holes to disperse some of the heat is an excellent choice. While, if you're cutting natural stone as well, a top-quality superfast blade would be a better choice.

Stepping down from the most difficult of materials, a standard general-purpose diamond blade can easily handle the demands of cutting bricks, slabs, concrete paviors, roof tiles and most concrete products.

Whatever kind of drilling or cutting job you're faced with, it's always best to ensure you're using the best kind of blade or drill. It'll make the job easier, give you a better a finish and also potentially save you money by lasting longer.

About the Author

Dave Symons is Technical Manager of Hilbor Diamond Tools, whose Spectrum brand is a world leader in cutting tools and diamond core drills

Gurren Lagann: Core Drill Necklace $8.99 Gurren Lagann: Core Drill Necklace Brand: Gurren Lagann

Gurren Lagann: Metal Core Drill Key Chain $4.5 Gurren Lagann: Metal Core Drill Key Chain

Gurren Lagann Core Drill Metal Keychain $4.75 Gurren Lagann Core Drill Metal Keychain

1-1/8 Diamond Core Drill Bit $41.95 Unlike standard drill bits that simply put a hole in the glass, core bits actually remove a complete circle from the glass. Size 1-1/8. Works with a standard electric drill and only needs water as a lubricant. This is the ideal size hole to drill in your glass for pendant fixtures that include a candelabra socket. Fused lamp created by Julie Haan using large floral slumper 425720 and 1-1/8 diamond core drill bit.

1/4 Gryphon Core Drill Bit $14.95 Gryphon and 39;s core drill bits for glass artists feature the same high quality coating as their well-respected grinder bits. Diamond bits quickly and easily remove a complete circle in glass. Core bits work with a standard electric drill and only need water as a lubricant. 1/4 Core bit with 6mm shank. Shown below are the packaging and examples of projects that can be created using core drill bits. Fused pendant uses 1/8 core drill bit for a perfect hole for stringing. Water lily table fountain by artist Teresa Batten was created with fused flower molds and assembled using a core drill bit to accommodate the fountain and water flow. Fused glass sink by artists Val Oswalt and Roy Kapp was created using a core drill bit to create the hole to accommodate plumbing. Also shown is the entire core drill bits offering by Gryphon, allowing glass artists to always find the right bit for the job.

2 Gryphon Core Drill Bit $51.95 Gryphon and 39;s core drill bits for glass artists feature the same high quality coating as their well-respected grinder bits. Diamond bits quickly and easily remove a complete circle in glass. Core bits work with a standard electric drill and only need water as a lubricant. 2 Core bit with 12mm shank. Shown below are the packaging and examples of projects that can be created using core drill bits. Fused pendant uses 1/8 core drill bit for a perfect hole for stringing. Water lily table fountain by artist Teresa Batten was created with fused flower molds and assembled using a core drill bit to accommodate the fountain and water flow. Fused glass sink by artists Val Oswalt and Roy Kapp was created using a core drill bit to create the hole to accommodate plumbing. Also shown is the entire core drill bits offering by Gryphon, allowing glass artists to always find the right bit for the job.

1/8 Gryphon Core Drill Bit $12.95 Gryphon and 39;s core drill bits for glass artists feature the same high quality coating as their well-respected grinder bits. Diamond bits quickly and easily remove a complete circle in glass. Core bits work with a standard electric drill and only need water as a lubricant. 1/8 Core bit with 4mm shank. Shown below are the packaging and examples of projects that can be created using core drill bits. Fused pendant uses 1/8 core drill bit for a perfect hole for stringing. Water lily table fountain by artist Teresa Batten was created with fused flower molds and assembled using a core drill bit to accommodate the fountain and water flow. Fused glass sink by artists Val Oswalt and Roy Kapp was created using a core drill bit to create the hole to accommodate plumbing. Also shown is the entire core drill bits offering by Gryphon, allowing glass artists to always find the right bit for the job.

1 Gryphon Core Drill Bit $29.95 Gryphon and 39;s core drill bits for glass artists feature the same high quality coating as their well-respected grinder bits. Diamond bits quickly and easily remove a complete circle in glass. Core bits work with a standard electric drill and only need water as a lubricant. 1 Core bit with 12mm shank. Shown below are the packaging and examples of projects that can be created using core drill bits. Fused pendant uses 1/8 core drill bit for a perfect hole for stringing. Water lily table fountain by artist Teresa Batten was created with fused flower molds and assembled using a core drill bit to accommodate the fountain and water flow. Fused glass sink by artists Val Oswalt and Roy Kapp was created using a core drill bit to create the hole to accommodate plumbing. Also shown is the entire core drill bits offering by Gryphon, allowing glass artists to always find the right bit for the job.

1-1/4 Gryphon Core Drill Bit $33.95 Gryphon and 39;s core drill bits for glass artists feature the same high quality coating as their well-respected grinder bits. Diamond bits quickly and easily remove a complete circle in glass. Core bits work with a standard electric drill and only need water as a lubricant. 1-1/4 Core bit with 12mm shank. Shown below are the packaging and examples of projects that can be created using core drill bits. Fused pendant uses 1/8 core drill bit for a perfect hole for stringing. Water lily table fountain by artist Teresa Batten was created with fused flower molds and assembled using a core drill bit to accommodate the fountain and water flow. Fused glass sink by artists Val Oswalt and Roy Kapp was created using a core drill bit to create the hole to accommodate plumbing. Also shown is the entire core drill bits offering by Gryphon, allowing glass artists to always find the right bit for the job.

3/4 Gryphon Core Drill Bit $24.95 Gryphon and 39;s core drill bits for glass artists feature the same high quality coating as their well-respected grinder bits. Diamond bits quickly and easily remove a complete circle in glass. Core bits work with a standard electric drill and only need water as a lubricant. 3/4 Core bit with 8mm shank. Shown below are the packaging and examples of projects that can be created using core drill bits. Fused pendant uses 1/8 core drill bit for a perfect hole for stringing. Water lily table fountain by artist Teresa Batten was created with fused flower molds and assembled using a core drill bit to accommodate the fountain and water flow. Fused glass sink by artists Val Oswalt and Roy Kapp was created using a core drill bit to create the hole to accommodate plumbing. Also shown is the entire core drill bits offering by Gryphon, allowing glass artists to always find the right bit for the job.

1-1/2 Gryphon Core Drill Bit $42.95 Gryphon and 39;s core drill bits for glass artists feature the same high quality coating as their well-respected grinder bits. Diamond bits quickly and easily remove a complete circle in glass. Core bits work with a standard electric drill and only need water as a lubricant. 1-1/2 Core bit with 12mm shank. Shown below are the packaging and examples of projects that can be created using core drill bits. Fused pendant uses 1/8 core drill bit for a perfect hole for stringing. Water lily table fountain by artist Teresa Batten was created with fused flower molds and assembled using a core drill bit to accommodate the fountain and water flow. Fused glass sink by artists Val Oswalt and Roy Kapp was created using a core drill bit to create the hole to accommodate plumbing. Also shown is the entire core drill bits offering by Gryphon, allowing glass artists to always find the right bit for the job.

1/2 Gryphon Core Drill Bit $18.95 Gryphon and 39;s core drill bits for glass artists feature the same high quality coating as their well-respected grinder bits. Diamond bits quickly and easily remove a complete circle in glass. Core bits work with a standard electric drill and only need water as a lubricant. 1/2 Core bit with 8mm shank. Shown below are the packaging and examples of projects that can be created using core drill bits. Fused pendant uses 1/8 core drill bit for a perfect hole for stringing. Water lily table fountain by artist Teresa Batten was created with fused flower molds and assembled using a core drill bit to accommodate the fountain and water flow. Fused glass sink by artists Val Oswalt and Roy Kapp was created using a core drill bit to create the hole to accommodate plumbing. Also shown is the entire core drill bits offering by Gryphon, allowing glass artists to always find the right bit for the job.

Inland 5/8 Core Drill Bit $56.95 5/8 (16 mm) Core Drill Bit. Inland diamond coated core drill bits come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Drill 5/8 diameter holes Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image of Core Drill Bit Group courtesy of Inland.

Inland 7/8 Core Drill Bit $66.95 7/8 (22 mm) Core Drill Bit. Inland diamond coated core drill bits come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Drill 7/8 diameter holes Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 1 Core Drill Bit $64.95 1 (25.4 mm) Core Drill Bit. Inland diamond coated core drill bits come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Drill 1 diameter holes Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 3/4 Core Drill Bit $60.95 3/4 (19 mm) Core Drill Bit. Inland diamond coated core drill bits come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Drill 3/4 diameter holes Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 1-1/4 Core Drill Bit $65.95 1-1/4 (32 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Drill 1-1/4 diameter holes Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 4 Core Drill Bit $199.95 4 (102 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Drill 4 diameter holes Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 2-3/4 Core Drill Bit $147.95 2-3/4 (70 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Drill 2-3/4 diameter holes Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 1-1/16 Core Drill Bit $78.95 1-1/16 (27 mm) Core Drill Bit. Inland diamond coated core drills bits come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Drill 1-1/16 diameter holes Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 3 Core Drill Bit $159.95 3 (76 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Drill 3 diameter holes Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown below of Core Drill Bit Group courtesy of Inland.

Inland 3-1/2 Core Drill Bit $169.95 3-1/2 (89 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Drill 3-1/2 diameter holes. Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 1-3/16 Core Drill Bit $62.95 1-3/16 (30 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 1-3/8 Core Drill Bit $68.95 1-3/8 (35 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 1-1/2 Core Drill Bit $69.95 1-1/2 (38 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image of Core Drill Bit Group courtesy of Inland.

Inland 1-3/4 Core Drill Bit $73.95 1-3/4 (44 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 2 Core Drill Bit $99.95 2 (50 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 2-1/8 Core Drill Bit $99.95 2-1/6 (53 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 2-1/4 Core Drill Bit $144.95 2-1/4 (57 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image of Core Drill Bit Group courtesy of Inland.

Inland 2-1/2 Core Drill Bit $149.95 2-1/2 (64 mm) Core Drill Bit. Inland diamond coated core drills come in numerous diameters and are indispensable for drilling holes in a wide range of materials. Key Features 3/8 (10 mm) shaft fits most hand drills and drill presses. Use on glass, ceramic tile, porcelain, stone, marble, plastics and fiberglass. Ejection port to easily remove stuck plugs if they occur. Product Uses Make holes in clock faces for clock works. Drill holes for drains in ceramic tile and stone work installations. Drill holes for plumbing lines and fixtures in ceramic tile and stone work installations. Create small holes for hanging. Make holes for eyes in glass projects. Make axle holes for kaleidoscope image wheels. Make holes for hanging jewelry. Drill in composite counter tops for plumbing fixtures. Drill in fiberglass boats for accessory and fixture installations. Cut out for outlets on mirrored walls. Cut holes for hardware on glass doors. Image shown of Core Drill Bit Group courtesy of Inland.

Inland 1/8 Core Drill Bit $25.95 Rugged diamond coated core drill bits feature a standard 3/8 diameter shaft to fit most drills and drill presses. It also features an ejection port to easily remove stuck plugs if they occur. This 1/8 diameter bit has many uses including drilling hanging holes in projects, creating pilot holes for making inside cuts with ring saws, or drilling holes in ceramic tile for custom mosaic installations. Use it on glass, ceramic tile, porcelain, stone, marble, plastics, fiberglass and more. Image shown below of Core Drill Bit Group courtesy of Inland.

Inland 3/16 Core Drill Bit $26.95 Rugged diamond coated core drill bits feature a standard 3/8 diameter shaft to fit most drills and drill presses. It also features an ejection port to easily remove stuck plugs if they occur. This 3/16 diameter bit has many uses including drilling hanging holes in projects, creating pilot holes for making inside cuts with ring saws, or drilling holes in ceramic tile for custom mosaic installations. Use it on glass, ceramic tile, porcelain, stone, marble, plastics, fiberglass and more. Image shown below of Core Drill Bit Group courtesy of Inland.

Inland 1/4 Core Drill Bit $27.95 Rugged diamond coated core drill bits feature a standard 3/8 diameter shaft to fit most drills and drill presses. It also features an ejection port to easily remove stuck plugs if they occur. This 1/4 diameter bit has many uses including drilling hanging holes in projects, creating pilot holes for making inside cuts with ring saws, or drilling holes in ceramic tile for custom mosaic installations. Use it on glass, ceramic tile, porcelain, stone, marble, plastics, fiberglass and more. Image shown below of Core Drill Bit Group courtesy of Inland.

Inland 3/8 Core Drill Bit $29.95 Rugged diamond coated core drill bits feature a standard 3/8 diameter shaft to fit most drills and drill presses. It also features an ejection port to easily remove stuck plugs if they occur. This 3/8 diameter bit has many uses including drilling hanging holes in projects, creating pilot holes for making inside cuts with ring saws, or drilling holes in ceramic tile for custom mosaic installations. Use it on glass, ceramic tile, porcelain, stone, marble, plastics, fiberglass and more. Image shown below of Core Drill Bit Group courtesy of Inland.

3/8 Diamond Tech Core Drill Bit $30.95 Unlike standard drill bits that simply put a hole in the glass, core bits actually remove a complete circle from the glass. Size 3/8. Works with a standard electric drill and only needs water as a lubricant.

1/2 Diamond Tech Core Drill Bit $30.95 Unlike standard drill bits that simply put a hole in the glass, core bits actually remove a complete circle from the glass. Size 1/2. Works with a standard electric drill and only needs water as a lubricant.

1/8 Diamond Tech Core Drill Bit $24.95 Unlike standard drill bits that simply put a hole in the glass, core bits actually remove a complete circle from the glass. Size 1/8. Works with a standard electric drill and only needs water as a lubricant.

1/4 Diamond Tech Core Drill Bit $24.95 Unlike standard drill bits that simply put a hole in the glass, core bits actually remove a complete circle from the glass. Size 1/4. Works with a standard electric drill and only needs water as a lubricant.

Twofers Diamond Core Drill Bits - 1/8 $14.95 Two Bits for the Price of One. Aanraku brings you Twofers - superior quality, low-cost grinder and drill bits. Drill holes in your glass with this core drill bit. Great for jewelry making. Fits most electric drills. Coarse 100 diamond mesh grit for quick results.

The Core $76.47 High Quality Content by WIKIPEDIA articles The Core is a 2003 American disaster film loosely based on the novel Core by Paul Preuss. It concerns a team that has to drill to the center of the Earth and set off a series of nuclear explosions in order to restart the rotation of Earths core. The film was directed by Jon Amiel, and starred Aaron Eckhart, Delroy Lindo, Tchky Karyo, Hilary Swank, DJ Qualls, Bruce Greenwood, and Stanley Tucci. Several worldwide events, such as pigeons losing their ability to navigate in Trafalgar Square, and the computers on the Space Shuttle Endeavour sending it far off course and forcing the pilots to land in the Los Angeles River basin, cause leading geology experts Drs. Josh Keyes (Aaron Eckhart), Serge Leveque (Tchky Karyo), and Conrad Zimsky (Stanley Tucci) to surmise that that rotation of Earths molten core is slowing down, leading eventually to the collapse of the electromagnetic field which will expose the surface to the Suns lethal radiation. The three develop a topsecret plan with the United States government to bore into the Earths core and plant a series of nuclear charges at precise points to restart the cores motion and restore the field. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 104 Publication Date: 2010/05/19 Language: English Dimensions: 5.98 x 9.01 x 0.24 inches

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