Tentop PTF-100 Diamond File， 10-Piece set(200 Grit / 400 Grit/600 Grit )<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>This product is suitable for filing high hardness of metal， such as cemented carbide， after quenching or nitriding tools， alloy steel knife ， die deburring， plastic， chamfering， polishing， and clamping apparatus， etc.， can also be used in high hardness and brittleness of gold Belong to the processing of materials， such as glass， ceramic， jewelry and jade article， etc</li><li>Three kinds of grit : 200 grit/ 400 grit / 600 grit</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51l6OvhA6FL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/512OY93j4gL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41UCyEhp-LL.jpg" noproxy>