Brand: Beta Tools
Impact drivers save a lot of time when changing wheels, but zipping lug nuts on using full power can snap your wheel studs. The 720TC torsion bar extensions from Beta Tools are designed to limit the amount of applied torque to avoid overtightening and breakage.
Simply use one of these bars as a 200mm (7 7/8") extension between your impact wrench and your impact socket before tightening the lug nut. The 1/2" square drive fits common impact wrenches and sockets (sold separately). When your impact gun begins to hammer, the bar will twist to absorb the torque pulses above a set limit (90 Nm/66 lb-ft, 100 Nm/74 lb-ft, 110 Nm/81 lb-ft, 120 Nm/89 lb-ft, or 135 Nm/100 lb-ft). Finish by using your torque wrench to bring the nuts to full torque.
The part number and torque limit (in Nm) are etched into the bar, and each bar is color-coded for quick identification. This set of 5 is supplied with a handy storage wallet.
Note 1: These are torque limiting devices only. They are not designed to apply an exact amount of torque. You must use a torque wrench to ensure lug nuts are tightened properly.
Note 2: Never use these bars to loosen any fasteners. Doing so may break the bar and cause serious injury.
