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