Micro drilling capacity in solid steel : 0.2 ~ 6 mm Drilling dept : 55 mm Spindle taper: J1 Distance between spindle nose to table top: 0 ~320mm Spindle run out within : 0.005mm Spindle speed range: 4000 to 18000rpm High precision keyless drill chucks or collets can be directly matched. Fine depth control Rigid and sensitive Vibration free