High Frequency Diamond Wet Drilling Core Bits for Hard Granite Marble Concrete (Please use enough liquid, like water or lubricant, while drilling stone.)
Diameter: 6MM, 8MM, 10MM, 12MM,14MM
Total length: 75MM (Dia 6/8/10mm) or 4inch(102-105MM) (Dia 12/14mm)
Thread: M14(popular in Europe); 5/8-11 (popular in North America)
Drilling hard granite marble all nature stone concrete.
SUPREME Grade and Special bond matrix extends drilling life and improve the working efficiency
Ideal for drilling the faucet mounting holes in stone countertops, plumbing lines in showers and vanities.