etork click-style torque wrench (1/2-inch drive) (50-250 ft.-lbs, 70-340 n.m) etork with over 40 years of proven and successful experience in the field of torque technology, etork’s founder and ceo has designed, developed and sold torque wrenches to some of the largest retailers in the country. additional features: - 45 tooth ratchet head for easier clockwise and counter-clockwise operation in tight spaces. - hardened alloy steel housing for strength and durability, resulting in a slimmer, lighter design. - the ball bearing release mechanism ensures greater sensitivity, consistency and precision compared to competitive wrenches. - each wrench is factory tested and certified before shipping. an individual certification is included with each wrench. - ergonomic, large diameter soft-grip handle is more comfortable to use, and requires up to 50% less turning force than most competitive products when adjusting torque. - dual, english and metric scales are easier to read than on the most competitive wrenches, reducing possible adjustment errors. - the locking knob secures selected torque setting from accidental changes. the torque adjustment is made by pulling down on the locking knob and turning the handle. - the factory repair and calibration center is located in roswell ga for any needed service and assistance. specifications: accuracy: ± 3% (clockwise direction) country of origin: china package includes: etork torque wrench hard shell plastic case calibration certificate instruction manual