Automatic Drilling and Tapping Combination Machine for Multi-hole Drilling Product Name: Pneumatic Drilling Power Head Product Model: 3P Motor: None Maximum Drilling Diameter (m): Iron/Aluminium 8/10 Maximum Stroke: 80 mm Spindle Taper: JT6 Spindle Runout: Less than 0.01 mm Spindle Speed Range: 600–6000 rpm Voltage: 380 V Weight: 16 kg