It is stronger, and is mainly used as the inserts and buttons of rotary-percussive bits, heavy rock drill bits to cut hard and very hard formations. YG20 13.40-13.70 85.0 2254 Mainly for the stamping dies used in the conditions of heavy impact load and l...
Super Long Llifespan U Drill Fast Drill Blade Cemented Carbide Insert Spmg050204 for Steel Parts and Stainless Steel Universal Use US$0.80-1.20 / Piece Perfect Cutting Performance CNC Cutting Tools Cemented Carbide Insert Deep Hole Drill Peripheral ...