Maximum Capacity in steel 5mm, Wood 6mm. Can also be used as a hand driver. 21 torque settings plus Drill mode. Drive shank 1/4 Hex. Autostop clutch; the motor automatically stops at the moment the clutch is disengaged. Autostop system (on detection of remaining battery power); indication lamp warns the user visually of battery power reduction when it reduces to a certain low level If the battery power Reduces further The motor automatically stops to prevent incomplete fastening. Operates in straight or Pistol grip position. Led job light to illuminate the work area. 2 speed selection for high and low.