... with different grain size are available We specialize in the manufacture of tungsten carbide products such as tungsten carbide ... rods,rings,inserts, shims,, wear parts, drawing dies,drilling bits,cold forging dies,bars, ,balls,burrs ,PCD blades,PCBN ... end mill,tap,generic tools etcJGK1488120.514.192.53800Suitable for the hole processing and thread processing ,but especially suitable for machining ...