Torque multipliers are nice BUT, you still have to have some way to resist the force generated by the reaction arm of the multiplier. That reaction arm must absorb the same force it takes to break the bolt loose. In some situations that arm can rest against an immovable surface. Breaking lug nuts loose is a good example. The ground is right there to absorb that force. Assuming of course that your truck is not on a jack when you break the lugs loose. In other situations, that is not so easily accomplished. Like most tools, very nice when they work, of no value when they don't.