We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Duncan Niederlitz and Eve O ...

Big “D” shaped lock is about as hefty as they get. Probably wouldn’t completely stop a thief, but it should slow them down for a while. The folks at Squire Locks read our review of the Squire ML2L ...

The thickest of these three chains resists bolt croppers and substantially slows down a disc cutter. It's the best chain we've ever taken tools to, and the thinner ones are pretty good too. We tested ...