The Classic® platform was the first Mul-T-Lock® platform available in the USA. The technology has since been enhanced and expanded upon to create the Interactive® patented platform, which is widely available amongst authorized Mul-T-Lock dealers.
Mul-T-Lock’s Classic cylinders have a special telescopic pin tumbler mechanism with internal and external pins. Both the internal and the external shear lines must be aligned simultaneously in order for the plug to rotate.
The patented Mul-T-Lock plug has a special structure. When the top and bottom pins, plug and body meet, a three-dimensional shear line is formed, creating an almost perfect spherical shape. Steel inserts enhance anti-drilling resistance.
For enhanced high security with features such as patented key control, we recommend choosing the Interactive platform for your security needs.