1. carbide rod; 2. dia 1mm~45mm; 3. extruded or ... mill,tap,generic tools etcJGK1488120.514.192.53800Suitable for the hole processing and thread processing ,but especially suitable for machining ... -resistant alloy steel,cutting of small and medium sized cross section of high speed finishing,are processed reamer,aluminum ... needles,punch,dies and other accessaries . Tungsten carbide rod with central hole