20Pcs 3~50mm Diamond Drill Bits Sawmill Tool Crystal Granite

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Nickel-plated with a diamond dust coating offers performance and strength.Extended service life.
Diamond coated core drill bit removes a circle from glass, marble, tiles,granite, ceramic or other.Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably.
Can be used with a standard electric drill (not included), Always use lubrication (water), otherwise the diamond core drill will . Warnings: Not for use on Concrete or for depths about 1/2"; Water is required for lubrication when drilling.
Start your hole diagonally, make a round trace and then hold drill straight.Specification:Material: steel
Color:Silver
Model: 20 Pcs 3-50mm Size: 3/4/5/6/8/10/12/14/16/18/20/22/25/26/28/30/32/35/38/50mm 0.12/0.16/0.20/0.24/0.31/0.39/0.47/0.55/0.63/0.71/0.78/0.87/0.98/1.02/1.10/1.18/1.26/1.38/1.50/1.97 inch
Quantity: 20 pcsPackage Includes:20 Piece diamond coated bitsDiamond Coated Core Hole;Diamond Grit Drill Bit Set;Diamond Drill Bits ;Diamond ;Diamond Tile Hole
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