Haven't tried it on a bike cable lock (don't intend to) but I had a good size Master padlock on my shed cut with a pair of bolt cutters. I now own the bolt cutters, as my neighbor's dog was out, started barking, and my neighbor started to come over, thinking it was one of us. When she noticed what was going on, screamed and ran back into her house. The would-be thieves ran away, dropping the bolt cutters in the process. If I ever lose the keys to my shed, I now have a "master key" which will open it! I'm a firm believer in that locks were made to keep honest people honest.