Features:
1) Shank: 1/4" x 6pcs
2) Diamond grit: 80, D 213
3) The files are made up of high grades pointed abundant diamond, the surface has
been electroplated, which makes it easy to process high rigidity material
4) Using it, you can adjust hardened material, moulds, carbide steel, glass, stone
carving, DIY
5) Highest rotate speed: 30,000r/min

Packing:
Plastic and blister