... Materials: iron, carbon steel, stainless steel ,aluminumFinish: plain, Nickle/zinc plated The tolerance: within ±0.05mm ... / printer shaft, scanner shaft, motor shaft and other various types of shaft, Appliance copper fittings,Automotive hardware parts, hex ... , the high degree of precision instrument, hardness gauge,various gauges, thread gauge, digital display micrometer, dial indicator, mm card ...