... 6.Angle clearance:R0.03mm Item Mass production machining block Material Steel ,Stainless steel, Iron ,Aluminum, Brass ... ,turning,milling,drilling,grinding,boring,stamping,threading, tamping and etc.Production equipmentInstrument lathe, CNC lathes machine , CNC milling ... , Thread rolling machine , Drilling machine, Stamping machine and etc.Quantity control We have a stringent quality check at every ...