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15 Pcs Diamond Drill Bits - Tile Hole Saw Set for Ceramic, Glass, Porcelain Tile Diamond Hole Saw Tile Set Glass Drill Bit
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About 15 Pcs Diamond Drill Bits - Tile Hole Saw Set For
Specifications:Material: Carbon Steel Color: SilverModel: 15pcs 4mm-50mm Diamond Hole Saw Drill Bit Set Size:4mm(4/25"), 6mm(1/4"), 8mm(5/16"), 10mm(3/8"), 12mm(1/2"), 14mm(9/16"), 16mm(5/8"), 18mm(11/16"), 20mm(3/4"), 22mm(7/8"), 25mm(1"), 28mm(1-3/32"), 35mm(1-2/5"), 40mm(1-1/2"), 50mm(2") NOTE: Always use water for lubrication, otherwise the diamond core drill will burn. Can be used with a standard electric drill. Start your hole diagonally, make a round trace and then hold drill straight. Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably. Use Coolant. Minimum pressure. Warnings: If you smell burning, back off! Either your speed is too high or the pressure you're applying is too much. You're drill bit should never be hot to the touch, not even warm. Not for use on Concrete or for depths beyond about 1/2". Water is required for lubrication when drilling.
