11pcs Diamond Core Drill Bits Set. This Heavy Duty Diamond core set is the ideal tool for making holes in concret, refractory marble, granite etc. Des...
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Diamond core drill bit is sintering with diamond grain, which has the characteristic of high hardness and wear-resistant, can drill smoothly with no b...
Read More11pcs Diamond Core Drill Bit Set 6/8/10/20/25/28/32/35/45/50/65mm for Tile
11pcs Diamond Core Drill Bit. Drills through concrete- stone- masonry- brick-tiles-paving. Ideal for boring holes for pipes, vents, manhole and more. ...
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