No load speed: 200 r / min. Speed and torque: high speed and low torque.Maximum tapping: Aluminum / Plastic M16, Iron M10, 45 steel M8. Features: low speed, power, suitable for attack steel / castings, commonly used in attack M6-M12 used for mounting on the bracket. Protection: This product has a protective function, when the torque is greater than the set value when the automatic slip. Send seven taps chucks: M3, M4, M5, M6, M8, M10, M12. We focus on industrial field accessories and combustion nozzles and other accessories products. Feedback is very important to us. It is impossible to address issues if we do not know about them!