Many locks fail quickly with just an angle grinder and a cut-off wheel. (as you can see on Storage Wars)
Every lock I've been unable to pick (usually due to the fact that it's a pile of rust) has been susceptible to bolt-cutters. Big lock? Bigger cutters. Still cheaper than an angle-grinder.
Many locks fail quickly with just an angle grinder and a cut-off wheel. (as you can see on Storage Wars)