... (4 Axis CNC M/C) & CNC Turning2. Reaming - ±0.01mm Tolerance3. Drilling - ±0.01mm Tolerance4. Tapping - All KindsOf Threads5. Standards, UNC, UNF ... , NPT, BSPT, BSPP and etc. Threads Vertical 90°±0.5°6. Grinding - Horizontally And Cylindrically To Standard Grinding ToleranceSurface ... Customers Requirements Auminum die casting motor parts-tank body EF168-2