Proto J6121F 1/2" Drive Dial Torque Wrench 35-175 ft-lbs, 5-24 mkg

Accurate to ± 4% of torque reading in both directions at 20% to 100% of full scale.Industrial all steel or aluminum torque transfer components.High alloy torsion drive design — accuracy not effected by hand position.Dual scale (English/Metric) with clockwise and counterclockwise operation — fewer wrenches needed to complete job.Memory needles are standard on all wrenches except electric light models.Easy-to-read, high contrast scale.Laser marked serial number for traceability.N.I.S.T. (National Institute of Standards and Technology) traceable CW certification supplied with each wrench.