Determining the lengths for locking cylinders

With our cylinder gauge, this is even possible without removing your old lock cylinder.

Delivery and assembly:

The gauge is supplied in 3 individual parts. The plugging together is possible without any problems. Through the pre-cut slots of the legs is pushed the part printed with the length scale. It should be noted that the laterally protruding parts of the legs (left and right each 5 mm) are placed on the opposite side of the scale.

You can find a detailed description of the gauge in our "Downloads".

The legs are the same width on the scale side over the full length.
Please check the length indication on the scale with a ruler. If mounted correctly, the readable dimension is correct.

Measuring the cylinders:

The tip of the cylinder gauge is placed on the center of the fixing screw (used to secure the locking cylinders). The two legs are then pushed up to the door leaf or the existing protective fittings (or rosette). Please ensure that the legs are aligned parallel to the door leaf to avoid measuring errors. Now both values (outside and inside) for the required cylinder length can be read off. When specifying the lengths, for example: 35 / 45, the first measurement is always the length for the outer dimension!