ABLOY PROTEC

The Protec is a disc-detainer lock made by Abloy. The Protec uses nine or eleven discs that interface with a sidebar. One of the main features of the Protec is a "Disc Blocking System" that locks discs in place and makes various forms of attack more difficult.








The Protec is considered by many to be one of the best mechanical locks on the market. Videos of certain flaws and defeats have been shown on the Internet, but none have been publicly verified by a reputable source.
The Protec is the latest in the Abloy disc-detainer line, succeeding the Abloy Exec.

The Protec works by using angled bitting cuts on the key to properly rotate discs. The key is inserted and rotated 90°; the angled cuts on the key in rotate the discs in the lock. If all the discs are rotated to the correct position the sidebar can fall into the discs and the plug can be rotated. Washers are placed between discs to ensure that the key rotates each disc individually.