Precision torque wrench for exact tightening to 10-80 N-M or 7.4-59 ft. lb. Adjustable in Newton-meters and foot-pound Six interchangeable open end adapters (Sizes: 17, 22, 24, 26, 27 & 29 mm) The N-M and foot-pound (FT-LB) scales are marked on the barrel of the wrench for easy and permanent reference The micrometer-type sleeve is easy to read and allows accurate pre-set torque values to be set. When the set torque is reached, the wrench produces and audible click and a slight, safe release of tension to prevent over tightening Accurate within 4% when measured per BSEN 26789 & ISO 6789 & ASME B107.14M & DIN3122 regardless of the open end adapter head used The wrench kit weights 7.3 lb (3.3kg) The wrench length with adapter is 16" (406 mm) Packaged in a blow-molded storage case