Provides extra torque to loosen rusted bolts, stuck fasteners or over-tightened nuts easily and safelyMaximum leverage for hard-to-reach spaces; fits most hex, Allen key, TX, XZN and socket wrench toolsSafer than using a cheater bar, snipe, extension pipe or other improvised torque multiplier toolFits up to 1.85″ (46mm) size wrenches