Specification: Material: Tungsten Steel Size:3.0mm,4.0mm,5.0mm,6.0mm,8mm,10mm,12mm Unoated, For Aluminum Copper Cutting. Package: 1pcs in one box Feature: Reduce the time of changing tools, increase the machining efficiency All products shipped before strict quality inspection, so as to ensure the normal operation of production Warning: when machining, cutting tools may be broken due to shock in improper conditions, use protective materials such as safety glasses and protective gloves to prevent injury. Please use the tools in the recommended cutting condition.