... 2008 & 2000; minimum tolerance: +/-0.0001 bronze gear and wormsSpecifications:1) Suitable for various automotive, electronic, telecommunications, ... . 3)Quality control equipments: roundness meter, projector meter, microscope, gear-test meter, surface measuring meter and so on4) Precision/tolerance:0.0001mm5 ... Steel products, Pins made of Iron, Copper and Aluminum, and so on, with an output of over 1 ...