Features: The operation is simple and the high efficiency. Tighten it clockwise to reach the preset value, the wrench rotates for one round, and there is a clicking sound simultaneously, the operation is completed; Non-reversible clockwise operation, otherwise will affect the accuracy of the wrench; Replaceable post; The torque value is not adjustable; It is made of steel with high hardness corrosion resistant, non-slip and strong torque; 1/4in (6.35mm) hexagonal interface, can connected to air bit, adapter sleeve, extension rod; Specifications: Material: Steel Size:Approx.8.1x5.7cm/3.19x2.24in Option Type:1.8Nm Torque,2.5Nm Torque; Package Includes: 1x Torque Wrench 1x 7MM 1x 8MM 1x Connecting Rod note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.