... ball screw, precision, stability,and reliability. Vertical CNC Drilling & Tapping Machine Model:Auto-7540A1.An electromechanical integration design ensures the ... using the ball screw, precision, stability,and reliability. ItemsParametersMax.Drilling capacitySteel: Ø30Max.Tapping capacitySteel: M20×2.5mmSpindle taperMT4Max.travel ... W*H)110×118×225Net weight1000Kg Vertical CNC Drilling & Tapping Machine