Description

diamond drill bits divided into sintered and coated ones, Diameter from 2mm***0mm, Threaded, Straight and cone shank, Can be used for glass, tile and stone drilling, The normal total length is *0mm, *5mm *0mm and *5mm, Diamond Core Drill Bits, also know as Diamond Hole Saws, are used to drill glass, ceramics, porcelain, ceramic and porcelain tile, limestone, slate, marble, granite, stone, and fiberglass hole drilling . Size is from 2mmâ??**0mm , it is very easy to use , just add water for lubrication. sharp, more wearable, long life, no fragile when working, can adjust the grit according to customers&#**9; request