Features: 1) The best alloy steel and tungsten carbide tips 2) Uses the best copper welding 3) The best heat treatment "SANHEJULI" brand rotary bits can be suitalbe for bauer, Cat ,Sany ,Yutong,Foton lovol Zoomlion machines, We use high grade alloy steel and tung-esten carbide tip and adopt advanced brazing technology to produce high quality, high wear resistance,long life cutters. We also can ...