In Chapter 2, we discuss different methods of forced and covert entry in relation to UL 437 and BHMA/ANSI 156.30. We also describe how locks are protected from different forms of attack.
CHAPTER 3: CONVENTIONAL AND HIGH SECURITY LOCKS
In this chapter, we discuss the differences between conventional and high security locks. In the image, above, the Easy Entrie milling machine is shown. This instrument can be used to replicate most blanks.
CHAPTER 4: COMPARISON OF MEDECO, ASSA, SCHLAGE PRIMUS, AND EVVA MCS
The ASSA sidebar lock is compared to Medeco, Primus, and the MCS.
We compare four of the most popular high security locks, and examine why each of their attributes to determine strengths and weaknesses.
These are more images from our new book.
MEDECO BIAXIAL CYLINDER
The Medeco Biaxial® cylinder cutaway showing the interaction of the sidebar and the rotating pins.
MEDECO M3 HIGH SECURITY CYLINDER
The Medeco M3 cylinder utilizes the Biaxial technology but adds another layer of security and key control with the introduction of a patented slider mechanism. This slider is controlled by one of twenty-six steps on the key and is moved into the precise position to allow the sidebar to retract. Note the gates on the sidebar. There are corresponding tabs on the slider that must be perfectly aligned.
© 2007-2008 Marc Weber Tobias These images may not be reproduced or distributed without written permission of the author.