PLEASE NOTE: The screwdriver is 21V and suitable for 18V, but in order to provide more power, we match the battery with 18V, and the 18V battery is more mainstream. This does not affect any use, if you mind, please order with caution. Specification: Rated voltage: 18V Torque gear: 25+1 Handle type: Handheld Rotation: Two-way 2-Speed: 0-450 & 0-1500 RPM Features: METICULOUS AND THOROUGH - An 25+1 position clutch prevents the stripping of screws and delivers 50N.M of max torque. Power drill's multi-position clutch will deliver precise power where you need it. When faced with a change of density in materials. 2 VARIABLE SPEED ADJUSTMENT - The electric drill is designed with variable 2-speed settings (0-450 & 0-1500 RPM ) for multiple purposes. The drill trigger controls the speed.