Robust diamond dust The end of the glass hole saw is coated with high quality diamond sand, which makes sharp, high-precision and smooth cuts at high speed.
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Suitable for M14 thread The set contains 6 drill bits with diameters of 68mm, 55mm, 50mm, 42mm, 25mm and 20mm which can be drilled as required.
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Small gaps in between The diamond hole saw drill has small gaps around the edge, designed for less friction and smoother and faster cuts.
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