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Cylinder protrusion refers to the protrusion or projection of a locking cylinder from the door leaf (the door surface). This determines which cylinder length and which fitting should be used for a door. Even short cylinders can have a protrusion of a few millimeters,...

A cylinder breaker is a special tool used by emergency locksmiths that can be used to break off locking cylinders that protrude only a few millimeters. To prevent deformation after repeated use, the breaker is usually made of high-quality steel. Many breaker bars can...

Oval cylinders, or cylinders with an oval shape, are sometimes used for furniture, filing cabinets, drawer cabinets, and the like. These are often push-type cylinders that lock the cabinet simply by applying pressure or simply pushing it in. Additional locking is not...

Some doors have a rim lock that is screwed to the door from the inside. Opening this rim lock requires an external cylinder. This external cylinder is screwed to the inside of the door. The lock is unlocked or locked with the help of a metal tongue as soon as the key...

Not so long ago, round cylinders, or rather cylinders with a round shape, were very well known and widespread in West Germany. However, the problem was that manufacturers used their own dimensions and systems for their respective round cylinders. Therefore, it's...

The cylinder core is precisely the component of a cylinder (profile cylinder) into which the key is inserted in order to unlock the lock with one or two key turns (locking turns). The cylinder core rotates when the key is turned. It also contains all the tumblers...

The core protection is a component of the cylinder that ensures that the cylinder core cannot be removed with special tools. The core protection therefore plays an important role in burglary and property security. Those interested can also find further information on...

Anyone who purchases a locking cylinder with core pull protection is purchasing a locking cylinder whose cylinder core cannot be easily pulled out, even with special tools. Essentially, (core) pull protection is a cover for the locking cylinder. Would you like to...

The actual main element of a door is generally referred to as the door leaf, but the door frame and door jamb are not part of it. A high-quality door leaf is sturdily constructed and not excessively heavy. In the case of rebated doors, the standard thickness of the...

The deadbolt lock is an intelligent security solution designed for special requirements. Unlike conventional locks, the deadbolt lock does not have a lock trap, but is equipped exclusively with a bolt. For this reason, the deadbolt lock is also referred to among...