... 6.Angle clearance:R0.03mm Item Precision thread stainless steel parts Material Steel ,Stainless steel, Iron ,Aluminum, Brass and etcMaterial standard ... painting and so on.Main process Machining,turning,milling,drilling,grinding,boring,stamping,threading, tamping ... and etc.Production equipmentInstrument lathe, CNC lathes machine , CNC milling machine , Milling machine , Grinding ...