A punch grinder is a tool installed on a grinder that can automatically obtain concentric circular grinding punches without any adjustment.

The pressing roller on the pressure arm can be used for rotation or left and right adjustment, which can make the workpiece move forward or backward before grinding.

When re grinding, the icon can be used to press the sample fixing screw and press the roller arm to make it more stable.

This tool has an accuracy of 0.005m and can grind punch outer diameters of 1.5-025, with a grinding length of 5-35mm.