Diamond hole cutter GRAPHITE (ref. 55H301) in diameter 8 mm with thread M14 is designed for precise cutting of stone, stoneware, tiles, glass, asphalt, brick, concrete. Thanks to the use of a diamond, the cutting power is concentrated in a small area, which eliminates the risk of cracking or damaging the surface. Suitable for dry running. The hole cutter has been vacuum brazed, which will increase its resistance.