WEST 916

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The 916 is a dimple lock made by the Japanese company WEST.

Principles of operation
The WEST 916 contains 12 pins, arranged in rows of six on the left and right of the keyway. It also contains a core-centering ball bearing.

The pin chambers in the core are overmilled as an additional defense against lock picking. The 916 contains multiple security pins: both regular and mushroom driver pins as well as spooled and tapered multiple spooled key pins. The key is bitted on both sides of the blade and is reversible.