Abloy Exec

=Abloy Exec=

The Exec is a disc-detainer lock made by Abloy. The Exec uses 9 or 11 discs that interface with a sidebar. It is a modified version of the Abloy Disklock that includes a Disk Steering System (DSS) designed to protect against lockpicking. Unlike the Disklock, the Exec only allows the key to be turned one direction. As such, it was used primarily in spring latches, padlocks and cam locks. The Exec model uses an 'H' shaped keyway.

The Abloy Exec, launched by Abloy in 1994, was an updated form of the Abloy Disklock. It has since been replaced by the Abloy Sento, Abloy Easy, and Abloy Protec 2.

Principles of operation
The Exec works by using angled bitting cuts on the key to properly rotate discs. The key is inserted and rotated 90&deg;; the angled cuts on the key then 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. The main advantage of the Exec is the use of a Disk Steering System (DSS) that requires the key to be fully inserted before the plug can rotate. This is the precursor to the Disk Blocking System (DBS) used in the Abloy Protec.

There are six positions available for discs (designated 0-5), at 18&deg; increments between 0&deg; and 90&deg;. In an eleven disc lock, there are 10,077,696 (69) theoretical key differs. Two of the eleven discs are always 0 cuts that control the Disk Steering System.

Discs provide manipulation resistance in the form of false gates. In addition, they may use a modified cut-out shape to deter the use of improperly shaped tools. The first disc in the lock is made of hardened steel and is free-floating. This provides drill resistance as well as lockpicking resistance.

The Disk Steering System (DSS) works with two dimples, one on each side of the key blade. When the key is fully inserted two sliding pieces inside the plug are pushed into the key. This allows the plug to rotate as well as prevents the key from being removed when the plug is rotated.

The sidebar is L shaped to prevent drilling and removal attacks.

Notes
 * The first disc (hardened steel) is always a 1 cut (90&deg;).
 * Master keying is made possible by multiple true gates cut on each disc.

Key security levels

 * Red (Factory restricted)
 * Keys are only available from Abloy directly.


 * White (Customer restricted)
 * Keys are available from specific Abloy Exec dealerships.


 * Blue (Dealer restricted)
 * Keys are only available through Abloy dealerships. A security card is required to duplicate keys.

Disassembly instructions
Disassembly of the Abloy Exec is fairly simple, though it has more parts than previous models. Care must be taken to ensure that removal of the discs is done properly. Discs cannot be flipped around and the order of washers must be preserved to ensure proper function once reassembled.

Vulnerabilities
The Exec may be vulnerable to one or more of the following:


 * Lockpicking
 * Impressioning
 * Decoding