... superhard coating gear hob cutter,gear milling cutter,gear cutter 1. Name: nanocomposite superhard coating gear hob cutter,hob cutter,gear cutter 2. Brand: YUJIE3 ... working: 400°c,600°c,900°c,700°c,1100°c8.Micro hardness: 2300-3500HVMain products in our company: ... inserts, milling inserts,threading inserts,gear hob,broche cutter, tap cutter,reamers and some nun-standard products etc Technique resources ...