1 3/8" Stone Diamond Wet Core Drill Bits
Specification of wet core drill bit:
Diameter: 4mm to 150mm;
Thread: M14, 5/8-1, 1/2G etc;
Usage: Wet drilling.
Features of granite core bits:
Application: for drilling holes on various stones;
High efficiency, smooth drilling, long life;
Devided into silver welded, laser welded, electroplated and vacuum brazed technology.