Drilax 1-3/4 inch Diamond Hole Saw Drill Bit Marble Concrete Stone Tile Brick Granite Countertop Ceramic Porcelain Bits Holesaw DIY Shower Faucet

DRILAX Wet and Dry Use - Professional Quality High Density Diamond Sintered Hole Saw for Marble Concrete Stone Tile Brick Granite Countertop Ceramic Porcelain Bits Holesaw DIY Shower Faucet Installation in Kitchen Bathroom etc Heavy Duty for Brick and Concrete 2 inch Depth of Cut Diameter : 1-3/4 inches Shank Size: 3/8 inch Suggested Cutting Condition: Wet or DRY Please note our tools do not need center pilot holes. Center pilot hole drills are mostly for wood metal etc. Drilax tools can drill 2 in depth. 3/8 inch Shank Size for STANDARD Electric or Rechargable Drills - Also perfect for upright drills. Electroplated diamond coating will wear off if the tool gets too hot. Here is how you could use water to keep the tool cool: a- You can build a mini water pool around the hole with plumbers putty. b- You can choose to spray water on the drill bit. c- Or you can use running water to cool the drill bit. EASY TO USE Center pilot drill bits are for wood metal etc.; Here is how you can keep the drill bit on target: a- You can make your own guide out of plywood - plastic or even a card board. All you need is to keep the drill bit in place until it makes the initial marks. b- You can start drilling at an angle with the edge of the drill bit making a C slot and then getting the drill bit up to vertical. c- You can manually guide the drill bit with wet sponge. Please use protective gear. Drilax has a drill bit guide available on. The guide has a suction base. Just search for Drilax Drill Guide