The EVVA system uses a unique pinning system using sliders to activate a control bar with no traditional top pins. In addition, broaching sidebars are used to create multi-broached key systems allowing qualified locksmiths to install the largest of key systems.
EVVA has high-security, anti-pick, anti-bump sliders made from Teflon impregnated nickel silver. They are protected by hardened sidebar blocking pins and a key control hook pin. In the front of the cylinder we have hardened steel pins to protect the cylinder against attacks.