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6pcs Solid Diamond Coated Drill Bits Hole Lapidary Needle
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About 6pcs Solid Diamond Coated Drill Bits Hole Lapidary
Specifications: Material: Diamond Powder. Color: Silver. Length: Approx. 36-55mm(1.41-2.16inch). Size:5#/4#/3#/2#/1#/0#. Diameter of Shank:0.6/1/1.4/1.6/2/1.2mm(0.02/0.04/0.05/0.06/0.08/0.05inch). Diameter of Head:1.2/1.0/1.6/1.8/2.0/2.2mm(0.047/0.055/0.06/0.07/0.078/0.086inch). Note: Use cold water during the drilling hole operation. Use high-speed(Up 20000 RPM) to drill holes with our drill bits. Be stable, don't shake. Please allow 0-3mm errors due to manual measurement. Because the production batch is different, the product will have color difference. Due to the wet weather and storage conditions, there may be a few rust stains and scratches on the surface of the product.Thanks for your understanding! Package List: 6 x Lapidary Drill Bits
