These Comb Lock Picks are designed to pick pin-tumbler locks by moving all pin stacks completely above the shear line, allowing free rotation of the plug. Includes 5 comb picks to fit some 4, 5, 6, and 7 pin locks. Comb picks can be used on locks with wide keyways and tall spring wells that will allow the tool to lift both the bottom and top pin above the sheer line to open the lock. These will not work on all locks.