... tolerance:+/-0.0001 4.finish&Heat treatment worm gear for servo motor Specifications:1) Suitable for various automotive, electronic, telecommunications, ... Mitutoyo fineness instruments for inspection, EDM, high speed CNC machine, Sodick wire EDM, etc. 3)Quality control equipments: roundness ... , Copper and Aluminum, and so on, with an output of over 1 million pieces per month. worm gear for servo motor