... ISO9001:2008; tolerance: +/-0.0001mm high precision rc worm gear for toy car Specifications:1) Suitable for various automotive, ... , Mitutoyo concentric circles, optical projectors, Mitutoyo fineness instruments for inspection, EDM, high speed CNC machine, Sodick wire ... test meter, surface measuring meter and so on4) Precision/tolerance:0.0001mm5)Surface processing technic : heat treatment, induction ...