shaft,motor shaft, gear shaft, worm shaft Size:L 0.5 ... is welcome Finish & Heat treatment High quality steel shaft, shaft, motor shaft, gear shaft, worm shaft, OEM is welcome. Basic ... team inspecting on every working procedure.Use high quality test equipment as hardometer,image survey meter,etc.Also run ... ± 0.01mmRa : 0.8mmI.D. 0.25mm Steel shaftt, motor shaft, gear shaft, worm shaft, OEM is welcome.