Accurate clutch system with 3% deviation of torque, assure the best quality    Wide torque range and longer life cycle of motor
   Low noise, low vibration and high accuracy
   One-handed operation (turn & change the rotary direction)
   With ergonomic grip handle for comfort & easy to grip
   Can quickly change the bit by push the bit head
   With unique color torque system (for easy visible torque marking at a glance)    With torque fix system for easy to mark the torque through the window