From the brand Product description SOLID IN USE: Thanks to its optimal force transmission, the compound torque wrench kit of 5 pieces is a valuable aid for many maintenance and repair jobs all around the car in particular. PRECISE AND PRACTICAL: The carbon steel ratchet wrench has a double graduation in Nm and Mkg as well as a switching lever for quick change between clockwise or left-hand drive. AT THE CLICK IT'S DONE: an audible and perceptible signal indicates that the set torque is achieved and thus prevents over-tightening of the screws. STORED PRECISELY: when the torque wrench is no longer in use, it can be stored safely in its handy and robust case or hung on a hook. PRODUCT DETAILS: torque wrench length: approx. 475 mm // Adjustment range: 28 – 210 Nm / 2.9 – 21.4 Mkg // Drive: ½ inch (12.7 mm square) // Tolerance range: +/- 4 % // Length of l extension: approx. 125 mm // Weight of torque wrench: approx. 1.4 kg.