S-LONG 3/8'' cordless ratchet wrench is powerd by 12-volt motor and delivers up to 40N.M of torque. It produces 280 RPM, with variable-speed trigger for greater control.Forward and reverse switch makes for simple changing between tightening and loosening nuts. This electric ratchet Designed with LED light. Lithium-ion battery is detachable and can be recharged. And the charging time of the battery is only 1 hour. This power ratchet wrench can be widely used in many situations like auto mechanics, pipeline disassembly, scaffolding installation, mechanic breakdown service and so on.