6pcs/package Vacuum brazed diamond drilling bits with15MM diamond height. Diameter 20/25/35/45/55/75mm, M14 connection, Total height 60MM, Diamond hei...
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One set Vacuum brazed diamond core bits with Box, professional quality. 7pcs products with box. Diameter 20mm 27mm 35mm 55mm 68mm Drill Bit; Diameter ...
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