This Diamond Core Drill Bit has 1 1/4 - 7 UNC Thread for professional Core Drilling Machines 5" x 15" (127x400) x 1 1/4" -7 UNC Thread Sintered Diamond Core Bits are also known as Diamond Hole Saws. These are professional quality, heavy-duty diamond drill bits designed for use on Cement Block, Concrete, Brick and much more. Sintered diamond drill bits have the diamonds embedded into the metal of the Hole Saw teeth or continuous edge rather than merely "bonded" to the outside / tip. As the teeth wear down over continued use new diamonds come to the surface of the teeth. Sintered diamond drill bits are heavy duty bits designed for long life. Generally, sintered bits will have a long life of 20 to 30 or more times the life of a bonded Grit type diamond drill bit if used properly. The heavy-duty design provides long life when drilling in hard materials such as Brick and Concrete. Water is recommended for coolant and lubrication. Package Contents This listing includes the following: 5" (127mm) x 15" (400mm) x 1 1/4-7 Thread Sintered Diamond Core Drill Bit Another Amazing Product We have been Manufacturing Tools for over 40 Years in UK. USA Based Seller So What Else Might You Need? If you have a Tile Project to do check out our other kits that include the Amazing Tile Glass Cutter plus other items like Drill Bits for mounting grab bars and towel rails, Hole Saws for Faucets and Shower Head. Larger Hole Saws for Drains, Even 7 1/4" for the Toilet Flange Large Core Bits for Dryer Vents. Go Straight to Our Store What Else Do We Sell? Tons,Keep Scrolling! A range of Kits that include Amazing Tile Glass Cutter? Some with Drill Bits, Saw Blades, Grinders Some with Files,Jigsaws and Holesaws Tungsten And Diamond Tile And Glass Drills For Mounting Grab Bars, Toilet Roll Holders, Towel Rails. Tungsten for Wall Tile Marble Slate. Diamond for Porcelain, Floor Tile, Granite Stone and Rock. Click To See Video of Tile And Glass Drills Tungsten Carbide Grit Edge Hacksaw Blades Cuts through Hardened Steel, Seized Padlocks Hardie Siding and Backer Board, Cement Block Cast Iron, Check out Listings for full list. Video of Tungsten Rodsaw Cutting Padlock Video of Tungsten Rodsaw Cutting Tile Tungsten Carbide Grit Edge Jigsaw Blades Cuts through Plaster, Drywall, Hardie Board Cement Backer Board, Fiberglass Laminate Flooring. Check out Listings for full list. Click for Video of Tungsten Jigsaw Blades Tungsten Carbide Grit Edge Reciprocating Saw Blades Cuts through Plaster, Drywall, Hardie Board Cement Backer Board, FiberGlass Laminate Flooring. Check out Listings for full list. Click for Video of Tungsten Reciprocating Blades Tungsten carbide Grit Edge Hole Saws Cuts through Concrete, Brick Masonry, Stucco, Plaster, Drywall, Hardie Board Cement Backer Board, FiberGlass Laminate Flooring. Low Density Ceramic Tile Check out Listings for full list. Video of Tungsten Hole Saw Hole in Paver Video of Tungsten Hole Saw Kit Hole Saw Adapters Hex + SDS Extensions, Pilot Drills Designed for Our Tungsten Hole Saws as the Adapter Pilot Drills are TCT - Tungsten Carbide Tipped for Masonry but will fit any other hole saws Video of Hole Saw Adapters Diamond Grit Edge Hole Saws These Diamond Grit Edge Hole Saws are our Pro Range with Larger Diamonds than what you would find in box stores and you will get many holes if kept cool. Click To See Video of Diamond Hole Saws Diamond Hole Saw Guides Diamond Hole Saws with no Pilot Drills can be a little tricky to start but our Diamond Hole Saw and Core Bit Guides make it simple. Video of Diamond Hole Saw Guides Hole Saw Kits A range of Kits that offer better value Than Purchasing individual items. Some Kits come in there own cases Video of Tungsten Hole Saw Kit Long Diamond Core Bits For Boring Thick Material Cut Deep Holes through Concrete Brick Masonry, available with adapters. Large 1 1/4" Bore Also available for Machines Click To See Video of Diamond Core Bits Diamond Core Bit Adapters, Pilot Drills, Shifts And Extensions Hex And SDS Adapters for Core Bits Click To See Video of Diamond Core Bit Adapters Vacuum Brazed Diamond Hole Saws / Core Bits Vacuum Brazed Can be used Dry Click To See Video of Vacuum Brazed Core Bits Angle Grinder Blades Core Bits and Tools Core Bits have 5/8-11 UNC thread which allows them to screw straight onto a regular Angle Grinder Thread Click for Video of Angle Grinder Blades and Bits Diamond Wet Saw And Circular Saw Blades Diamond Circular Blades For Wet Saws and Grinders Click To See Video of Diamond Circular Saw Blades Tungsten Carbide Grit Circular Saw Blades Great for Composites Epoxy and FiberGlass Click For Video of Tungsten Circular Saw Blades Water Marbles/ Water Beads Crystal Soil Just Add Water and they will hold 100 times there weight in water, great for mixing in soil to retain moisture. Click To See Video of Water Marbles Computer Stuff Click For Video of Computer Stuff Teeth Whitening Supplies Click To See Video of Teeth Whitening Supplies Tiling Project Tools Everything you need to tackle That Tile Project Video of Tile Project Tools Glass Cutting Tools Click To See Video of Glass Cutting Tools Clearance Items Range of products reduced to Clear