1.used to polish,sharpen household tools 2.high working efficiency 3.long working life 4.top quality 5.eco-friendly package diamond file set1) 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 Art.No.Diamond File SetSize3X98X50MMDiamond ...