... for oil/gas drilling and mining bits, PCD/PCBN cutting insert, diamond micron powder and so on. PCD wire drawing ... drawing industry, such as aluminum wire, copper wire, stainless steel wire, alloy wire etc..size rangetolerancecasing ref. Size inchmmmmmm ... brass wire, gold wire etc.hard wire: stainless steel wire, copper plated steel wire, tungsten wire etc. stainless steel wire drawing diamond dies