The new MT5 features not only a double-sided flat key but also 3 active locking mechanisms:The locking bar mechanism is one of the three technologies featured in the MT5 . Correct alignment of the top bar pins depends upon the correct combination key being inserted.The new -generation product is also based on a new configuration of Mul-t-lock's well-honed telescopic pin technology.The tip of the key has a revolutionary mobile interacting spring - the Alpha Spring. The Alpha Spring engages a unique pin at the rear of the mechanism, creating another shearline. All MT5 products have a double-sided unique MT5 key. One set of cuts is for the telescopic pin mechanism and the other cut, the milled pattern, is for the locking bar. The combination provides enhanced key security and higher manipulation resistance. To maximize user friendliness, the key also features an elegant, ergonomic key head with a special silky texture.The MT5 key secure system is supported by the unique key authorization magnetic strip card. This card must be presented to the locksmith to enable additional keys to be supplied. Only when the magnetic key card is presented to the dedicated MT5 key duplication machine, can the key code be configured.The MT5 not only significantly upgrades security. It supports very large and complex master key systems, incorporating hierarchy and matrix requirements even with the same suite. The milled pattern can be used to create exclusive keyways in the marketplace. Application: High security deadbolt system for commercial and residential doors. Operation: 90° key rotation throws the bolt 1" toward the frame, interlocking two hardened ball bearing with the strike to increase jimmying resistance. Materials: Solid brass rings and cylinder, Hardened Steel bolt and anti drilling ring, Steel strike, Nickel Silver & Stainless Steel pins. Additional features: Suitable for two back-sets, no need for different parts. Easy conversion between standards