JEGS W32903 Torque Limiting Extensions (Torque Sticks) come in a 5-piece set and are 1/2 inch drive extension tools that you can attach to your impact wrench for tightening lug nuts to the desired torque specification. Each extension stick has a specific pre-set torque value to allow you to tighten lug nuts to your vehicle manufacture specifications. Torque Limiting Extensions help you to apply torque to the correct tolerances and prevent over-tightening which is a lot faster and safer than traditional tightening methods. Made from heavy-duty chrome molybdenum, these extensions are color-coded with specific torque specifications for easy identification.