【Precise】 Heavy duty cam and pawl reversible mechanism with a torque range of 20-150 ft. lbs. (28-210 Nm). This reversible 1/2 in. drive torque wrench is the go-to tool when precise torque is needed 【User Friendly】 This wrench is a quality tool which is suitable for professionals and DIY motor mechanics alike. Quick release push-button. Easy one finger click reversible. Can be used for left-hand or right-hand applications 【Convenient】 The sockets are 21 mm, 19 mm & 17 mm to fit most car bolts. The adaptor from 1/2" to 3/8" allows more choices to use. The extension is 1/2" and 125 mm long 【High Quality Material】 Made from high quality carbon steel, heated and tempered. Heat treated steel ratchet head. Polish chrome finish easy to clean and resists rust and corrosion 【Storage & Accessories】 Packed in a plastic storage case with 5 extra accessories (3 sockets, 1 extension & 1 adaptor) Specifications: Type: Torque wrench Size: 17 mm, 19 mm, 21 mm Features: Ratcheting Material: Carbon steel Total length: 46.5 cm Set Includes: 1/2" Drive extension bar (Length: 125 mm) 1/2" to 3/8" Reducer/adaptor (Material: CRV) 3 x 1/2" Drive socket (17 mm, 19 mm & 21 mm) Features: Using this tool correctly ensures proper tension Loading settings are applied to nuts and bolts Can be converted using the conversion table included Use 1/2" square drive socket fitting Note:These torque wrenches give more of a feeling a nudgeFor low torque settings please ensure the nut/bolt is loose NOT finger tight before torquing down