1、10 Types Files: This set contains 10 different types of files, respectively are round point file, rectangle file, triangle file, half round file, flat file, oval file, double half round file, pointed flat file, knife file and willow leaf file 2、Easy Usage: These needle files are very easy to use, you can choose different shapes of needle files according to different grinding needs 3、120 Grit File: The needle file is 120 grit, which can help you finish the grinding work well, suitable for the processing of small parts 4、High Quality Materials: The needle file is electroplated by high quality diamond, which is sturdy and durable, the rubber handle is comfortable to hold 5、Wide Range of Application: This needle file set is suitable for hard material processing, post quenching material processing, glass product processing, mold polishing, deburring, edge trimming and chamfering, etc. 10 x Needle File Item Type: Needle File SetMaterial: Stainless Steel and Diamond Specification: Approx.3x140mm/ 0.1x 5.5inUsage: Used for hard material processing, glass product processing, mold polishing, ceramic material processing, trimming, etc.