TUBULAR LOCK . David Arky. Used in: Vending machines, ... These locks can be more difficult to penetrate because it's difficult to use a common straight-lock pick on a series of pins that are in a ...

A few years ago, Tobias discovered that a ball-point pen can pick open tubular locks, ... Often, Lock Picking 101’s Josh Nekrep says, they ignore problems that outsiders bring to them.