1.used to polish,sharpen household tools
2.high working efficiency
3.long working life
4.top quality
5.eco-friendly package

diamond file set
1) Standard Shape: 6 shapes (flat, semi-round, square, triangle, round), or upon your request
2) Diamond grit: 150# or as your requirement.
3) Coating: Nickel, chrome, titanium available
4) Packing: upon request