Effective cutting of hardened steels, fired ceramics, aggregate containing concrete, non-metallics and other difficult to cut materials;Clean effective cuts and extended life;Uniform synthetic diamond grit bonded over a durable steel platform;Always use a coolant and start at a low speed, increase speed as ease of cutting is noticed while avoiding heat build-up on the cutting surface;Recommended cutting speed is from 150 to 300-RPM

• Starrett KD0300-N 3-Inch Diamond Grit Holesaw

Starrett KD0300-N 3-Inch Diamond Grit HolesawStarrett