The Ratchet Wrench is powered by a USB Lithium battery which is compatible with any other tool in the range The 1/4″ Ratchet Wrench is perfect for tightening and loosening small nuts and bolts The brushed motor delivers up to 210 RPM with the control from a variable speed paddle trigger Compatible with any 1/4″ square drive socket set Switch between forward and reverse with a thumb switch knob, Weight: 1.10231131 Pounds, Manufacturer: Ryobi