Easy flat round mold! A chisel to turn and use! The bottom of the round hole can be easily processed flat! It is a chisel that can be used by turning it like never before. Excellent usability as a thin-edged chisel. It is attached to the pin vise body and used as a small chisel for flat processing of the bottom of the drill hole. Since the shaft is unified to 3 mm, it is not necessary to replace the collet chuck of the pin vise body, so it is easy to replace. * Because it is a knife, handle it with care when opening the lid or using it. ¼ How to use Attach the drill blade to the pin vise and dig a hole ¡ Attach the spin blade with the same diameter as the drilled hole to the pin vise. Use a spin blade to gouge the bottom of the carved hole.