From “S.L.” (3/09): “Having read this article, I decided to stop by the Master Lock section on my next Home Depot visit. I ended up getting a slightly larger version (part #8119D) than the one tested.

One of the best low-cost options available, the KASTEWILL Bike U-Lock is an impressive option that looks heftier than its price tag suggests. The 16mm shackle and 4-foot long security cable mean ...

Calling his gadget the "Combo Breaker," Kamkar claims it can crack a common combination lock in less than 30 seconds. Kamkar's device uses a technique that feels for telltale points of resistance ...