It is likely to strip or split wheel studs as well as sew brake rotors. Both are costly to repair, and the latter has the capability to be extremely hazardous. Using a torque wrench helps prevent such issues. While they surely do utilize air tools in specialist shops, and there is nothing like an impact wrench for breaking up a stubborn nut-free, the instrument has an integrated clutch that is utilized when replacing your wheel, to prevent over-tightening.