New innovative e-Assist ratchet works manually or battery powered. Specifications: 60-Tooth Gear Ratchet No-Load Speed: 400RPM Electric torque: 8.85 in.lb. Manual torque: 531 in.lb.(44 ft.lbs.) Includes 1/4″ & 3/8″ Socket Adapter, 1/4″ Universal Joint, and USB-C charging cable Made in Japan