A savior for round molds! A rotating carving knife
You can easily flatten the bottom of a round hole!
This is a chisel that can be used by rotating, which has never been done before. It is
also very easy to use as a thin-bladed chisel.

Attach it to the pin vice body and use it as a small chisel to flatten the bottom of a drill hole.
It comes in a set of 5 sizes from 1mm to 3mm.
The shaft is unified to 3mm, so it is easy to replace because there is no need to replace the collet chuck on the pin vice body.

*Since it is a blade, please handle it with care when opening the lid or using it.

▼How to use
① Attach the drill bit to the pin vice and dig a hole
② Attach a spin blade of the same diameter as the hole you have drilled to the pin vice.
③ Use the spin blade to go around the bottom of the carved hole.

It is possible to flatten the bottom surface (drill bit processing) of a hole made with a drill bit of the same diameter.
Shaft size unified to 3mm
Blade size: 1mm, 1.5mm, 2mm, 2.5mm, 3mm
Can also be used as a thin-bladed carving knife