• 【Interchangeable Head 】The special design of the interchangeable open end torque wrench is used to interchange the heads of various torque wrenches, such as ratchet head, spanner head, torx head. It makes a torque wrench has multiple uses in many places.
• 【High Accuracy】 This 1/2 inch drive torque wrench has ±3% precise accuracy in both clockwise and counterclockwise. It offers a dual scales of 10-170 Ft-Lb/13.6-230.5 Nm. The dual scale design to meet your different needs. The scale is clear and easy to read, not easy wear.
• 【Easy to Feel 'Click'】Pull down the lock knob and hold it until the torque setting is completed. Release the hand, the lock knob will automatically rebound back to lock the value. You will feel or hear a ‘click’ from the torque wrench when the preset torque value is reached to remind you not to apply any more force.
• 【Wide Application】The HVAC torque wrench makes it easier to tighten and loosen nuts and bolts in tight spaces. It is a professionals tool for motorcycles, car, refrigeration system, HVAC, mini-split air conditioners, industrial repairs. Warm tips: Please use a 4mm flat head hex wrench to change the ratchet head and jaw head.