... ~80mm OEM is welcome Finish & Heat treatment High quality steel shaft, shaft, motor shaft, gear shaft, worm shaft, OEM is welcome. ... lathes,polishing machines, milling machines, stamping machines,high-frequency induction quenching machines, etc.3>Strict and experienced QC team inspecting ... 0.005mm L ± 0.01mmRa : 0.8mmI.D. 0.25mm Steel shaftt, motor shaft, gear shaft, worm shaft, OEM is welcome.