Features and Benefits:Low input torque is required and can easily be applied by one person;Internal planetary gear system provides strength and durability;Place an impact socket on the output square to attach to the fastener, then restrain the reaction bar against the equipment being serviced;Input and output rotate in a matching direction, while the reaction arm moves in the opposite direction from the input/output force;Torque accuracy of +/- 5% CW between 20% and 100% of wrench capability;The GEARWRENCH family of torque wrenches & torque products offer the latest innovations in torque measurement. Included in the line are micrometer, tire shop, beam and electronic torque wrenches, as well as, torque multipliers. The micrometer wrenches are available in fixed head and flex head. The fixed head line offers wrenches in 1/4" to 3/4" drives. The flex head wrenches are available in 3/8" and 1/2" drives. The tire shop wrenches feature a rugged tire tread rubber cover on the head intended to specifically be used for checking wheel lug nuts and are available in 3/8" and 1/2" drives. The electronic torque wrenches ensure a more precise fastener torque level and are available in a 3/8" and 1/2" drives. The GEARWRENCH line of torque products allow the user to complete any job where accurate torque is required.