Together for cutting hard metal or stone, because of its brittle material, it can only be made flaky

From right to left, turning workpiece diameter. The hardness of carbide cutting tools were higher than any other material, high carbon steel with the most hard times, together for cutting hard metal or stone, because of grinding wheel, it can only be made ​​from a sheet, and then welded to the more ductile the handle on the predicament edge Diamond blade or crack, you can replace the other blade or replace the blade, which is called indexable turning tools enough. A smoother surface is obtained, mainly used to make copper alloy or light alloy precision turning, turning, must be used at high speed, the minimum required in the 60 ~ 100m/min, usually in the 200 ~ 300m/min.