DRILAX Dust Diamond Hole Saw Drill Bit 3 Pcs Set 1/2 inch -3/4 inch - 1 inch Granite Glass Tile - for Ceramic Tile Marble Rock Porcelain in

<p>Drilax Diamond Drill Bit - Hole Saw Set of 3 Pieces for Wet Cutting Tiles, Glass, Fish Tanks, Marble, Granite, Ceramic, Porcelain, Bottles, Quartz Sinks, Lot 3 Diamond Coated Core Hole Saws- Kitchen, Bathroom, Shower, Faucets</p><p>High Quality Diamond Drilling Tool Set of 3 Different Sizes: 1/2 inch , 3/4 inch , 1 inch inches</p><p>The diamond particle coating on Drilax hole saws give superior performance and lifetime. Please note our tools do not need center pilot holes. Center pilot hole drills are mostly for wood, metal, etc.</p><p>This set of Drilax tools can drill 1 inch in depth.</p><p><strong>No Need for Center Pilot Drills</strong></p><p><strong>Wet Type Tools, Please Do NOT Use Dry </strong></p><p><strong> Shank Shaft Sizes: 1/4 inch and 3/8 inch </strong></p><p><strong>Can be used with Handheld or Upright Drillers</strong></p>

• You can build a mini water dam around the hole with plumbers putty.
• You can choose to spray water on the drill bit.
• Or you can use running water to cool the drill bit.

• Center pilot drill bits are for wood, metal, etc.

• 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.
• 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.
• You can manually guide the drill bit with wet sponge.
• Electroplated diamond coating will wear off if the tool gets too hot.
• Never let your drill bit run dry.