... 3high precision,Low noise 4OEM accepted 5Pass ISO9001:2008 Electric drill parts bevel gears in powder metallurgy Features: 1High density ... machine etc. 7 Power tool partsPower Tool parts for electric drill, electrical hammer, angel grinder, electrical saw, electrical blower, ... load 4With low and smoothly coefficient of friction and without stick-slip effects 5Suitable for dirt, impact and edge load ...