shaft,motor shaft, gear shaft, worm shaft Size:L 0.5~400mm O.D 0.5~80mm OEM is welcome Finish & Heat treatment High quality shaft, motor shaft, gear ... shaft, worm shaft, OEM is welcome. Basic process:1.the shafts are ... ± 0.005mm L ± 0.01mmRa : 0.8mmI.D. 0.25mm shaft, motor shaft, gear shaft, worm shaft, OEM is welcome.