High precision brass worm 1.Small order accepted 2.Surface ... pcs per month 4.Factory price Good smooth big brass worm for gearbox Feature of Processing 1) Gear precision ... HRC58-623) Gear Mould no.: 0.3~154) Teeth profile: Spur,Helical,Worm,Spiral or other types 5) ... gear box for steelworks Product TypeCNC lathe partMaterial:Carbon Steel, Brass, Aluminium, Stainless steel, Plastic, POM, Delrin, Titanium ...