The Weha RockPecker 4" Core Bit is made specifically for drilling holes in granite, quartz, engineered stone, quartzite, marble, limestone, travertine, concrete, and other stone.
These thin wall core bits, with only a 2mm thick diamond rim, will "bite" into the stone quickly and drill fast through the stone.
These wet diamond core bits are made with a special bond that favors the hardness of quartz materials, along with the resin that they are made with, to drill very fast and very clean.
The RockPecker diamond core bit line is made to be used wet.
Weha RockPecker 4" Diamond Core Bit Specifications:
Diamond Wall Thickness: 2mm
Total Length: 3 3/8" (85mm)
Total Drilling Depth: 2" (50mm)
Recommended RPM:Between 1800-4500 rpm