Savior of round molds! Large-diameter spinning chisel tool!

Installed on a pin vice body for flat processing of drill hole bottoms and use as a small chisel tool. A 4-piece set sizes from 3.2 mm to 4.5 mm. The shaft is standardized to 3mm, eliminating the need to replace the collet chuck of pin vises, resulting in easy replacement.

Flattening the bottom surface of a hole made with a drill blade of the same diameter (drilling edge processing) is possible. Standardized to shaft size 3mm. Size range 3.2 mm, 3.5 mm, 4 mm, 4.5 mm. Excellent for use as a thin-blade chisel tool.

Flatten round hole bottoms with ease
A spinning chisel tool that has never existed before
Excellent for use as a thin-blade chisel tool

How to use:
1. Attach a drill blade to a pin vise to drill a hole.
2. Attach a spin blade with the same diameter as the drilled hole to the pin vise.
3. Flatten the bottom of the drilled hole with the spin blade.

Note: Please take extra caution when handling the blades, especially when opening the storage case or during use.