... .1-3.0 ISO9001:2008; tolerance: +/-0.0001mm brass worm gear for gearbox Specifications:1) Suitable for various automotive, electronic, telecommunications, mechanical ... circles, optical projectors, Mitutoyo fineness instruments for inspection, EDM, high speed CNC machine, Sodick wire EDM, etc. 3)Quality control equipments ... an output of over 1 million pieces per month. brass worm gear for gearbox