Diamond Drill Bit, Drillpro 20 PCS Core Drill Bits Glass Hole Saw for Tiles Glass Ceramic Marble Bottles DIY,3mm -- 50mm
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<b>[Product Information]</b><br>
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<li>SMALL RESISTANCE: Small incision resistance, opening speed is quickly, easy removal of chips and other advantages.Also help to open accurately. Large chip holes to ensure that when the punching smooth, punching accurate.</li>
<li>DURABLE: Nickel-plated with a diamond dust coating offers superior performance and cutting strength.Extended service life.This diamond drill bits are high quality and good performance that excellent for making clean and accurate hole.</li>
<li>IDEAL FOR: This diamond coated core drill bit removes a complete 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.</li>
<li>TIP: Can be used with a standard electric drill (not included), Always use lubrication (water), otherwise the diamond core drill will burn. Warnings: Not for use on Concrete or for depths beyond about 1/2"; Water is required for lubrication when drilling.</li>
<li>20 SIZES: Total 20 different sizes 3/4/5/6/8/10/12/14/16/18/20/22/25/26/28/30/32/35/38/50mm.Different sizes meet your different needs,help you in different places.</li>
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