Changeable key lock

4 wheel changeable key lock.
Keys available in three different lengths.



German leading manufacturer of accessories for safes: mechanical locks, boltworks, hinges and handles. Tecnosicurezza is the sole distributor for the Italian territory.

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Technical Features

Lock KL3909

Manipulation resistant 4-wheel changeable key lock

Three different key lengths: 90mm, 125mm e 150mm

Standard foot prints

Certifications: VdS and UL

Lock ML6785

Manipulation resistant 3-wheel combination lock

Square spindle

The lock can be mounted in all four directions (RH, LH, VU, VD) without removing the back cover: the result is an easier and faster installation

Unlike the threaded spindles that must be deburred after cutting, when the square shaft is cut to length, the cut-off points create a chamfered area: the chamfered area creates a positive location into the star washer then through the cam

Smaller “forbidden zone” for the third number of the combination (0-10 in spite of 0-20)

Wide range of dials available

Optional auxiliary bolts for three-way locking

Also available with standard threaded spindle

Standard foot prints

Certifications: VdS and UL

Software and Documents


User instructions