LOT 10 Pcs SET Diamond Hole Saw Drill Bit Set 1/4" - 2" Inch Granite Glass Tile - Tools 10 Piece Diamond Dust Hole SAW Drill BIT for Ceramic Tile Marble Rock Porcelain

<p><b>Features:</b> </p><ul><li>Diamond Drill Bits - Hole Saws</li><li>10 Popular Sizes: 1/4" to 2" - Factory direct products bulk packages.</li><li>For porcelain, glass, marble, ceramic, rock and granite</li><li>1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 3/8", 1 1/2", 1 3/4", 2"</li></ul><p><b>Details:</b> Professional Quality Core Drill Bits The diamond coating on these saws give superior performance and life.</p><p><b>UPC:</b> 600095802239</p><p><b>EAN:</b> 0600095802239</p><p><b>Item Condition:</b> New</p>

Here is how you could use water to keep the tool cool:
a- You can build a mini water dam 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.

Tiles;Glass;Fish Tanks;Marble;Granite;Ceramic,Porcelain;Bottles;Stones