The 1/4" Ratchet Wrench is perfect for tightening and loosening small nuts and bolts The Ratchet Wrench is powered by a USB Lithium battery which is compatible with any other tool in the range The brushed motor delivers up to 210 RPM with the control from a variable speed paddle trigger Tighten bolts up to a maximum of 8Nm, or choose to tighten off by hand using the wrench manually Compatible with any 1/4" square drive socket set, Weight: 1.2345886672 pounds, Manufacturer: Ryobi