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Salient. Victoria University Student Newspaper. Volume 36, Number 10. 23rd May 1973

Disc Tumbler Picking — IV

Disc Tumbler Picking — IV

Disc tumber locks are a cheap substitute for pin tumblers and are easily picked when the pin tumblers are mastered. The diamond shaped pick is the one most commonly used for these locks. See drawings below for the principle of the lock.

In drawing 1 the lock is locked. The spring loaded discs tumbers are pushed into shell slots. In drawing 2 the key forces the withdrawal of the discs. In drawing 3 the plug rotates.

Drawing of locks