The high security Interactive® cylinders have a unique telescopic pin tumbler mechanism using external and internal pins. The external and internal shear lines have to be aligned so the plug can rotate. When the top and bottom pins, plug and body meet, a three-dimensional shear line is formed to create a spherical shape.  Mul-T-Lock Interactive keys are available in plastic blue head & Steel Head configuration.
 
The cylinder has a spring loaded pin in the cylinder plug to produce a “virtual combination” only when the key is inserted into the lock.
These features make the cylinder high security with pick resistance.???Steel inserts ensure anti-drilling resistance.
 
If the cylinder is Master keyed, additional side and or back pins can be added.
The patented key and key blank ensure increased key control. Additional keys should only be cut on production of the Mul-T-Lock key card and customer identity.
Interactive is retro-compatible with the Mul-T-Lock Classic system, allowing existing locks to be upgraded.

 
 Call us today at (416) 773-5625 for more information on Mul-T-Lock High Security System.