1.Hight quality ER screw nut chuck 2.Low price collet: USD7.4 3.Trustable company satisfing service fine er collet nut. Guangzhou Huarui ... milling tools, cutting tools and engraving tools and ER collet,screw nut chuck for processing material like arylic, MDF, PVC, lense, wood ... CertificateBusiness License & Registration and Record of Foreign Trade Dealer ER screw nut Chuck For Milling Cutter