Safe Ventures Chubb 6K75 Pin & Cam Decode System (Pair)

The Chubb 6K75 Pin & Cam System is a proven, professional decoding method originally developed by Falle-Safe Securities in 1991. Initially designed for the Chubb Castle mortice lock, the system has since become one of the most effective and reliable techniques for defeating high-security lever lock mechanisms, including the Chubb 6K75 series.

Chubb 6K75 locks were produced in 6, 7 and 8-lever variants. Six-lever versions are extremely rare, but a dedicated 6-lever tool can be supplied on special request. Standard kits for 7- and 8-lever locks include a matched pair of Pin & Cam tools and a purpose-designed pin box to keep the decoding process clear and organised.

Unlike traditional picking, the Pin & Cam System works on a principle similar to impressioning — but in a controlled, mechanical and repeatable way. A tubular key tip contains a series of holes into which interchangeable pins are placed, effectively creating a variable key. A built-in tester mechanism allows each pin to be checked for freedom of movement while torque is applied to the lock.

How the system works

• Longest pins are inserted to form a “blank” key profile.

• Torque is applied using the handle grip.

• Each pin is tested in turn using the tester mechanism.

• Binding pins indicate incorrect pin length and are replaced with shorter pins.

• Loose pins are left unchanged.

• Repeating the process gradually forms the correct key profile until the lock opens.

• Once opened, the pin lengths can be read to determine the full working key code.

False notches do not defeat the system — all levers will eventually bind, and only correctly positioned levers remain loose until opening occurs.

Key features

• Designed for Chubb 6K75 high-security lever locks.

• Effective regardless of lever count, false notching, or curtain/pick-protector mechanisms.

• Mechanical, controlled alternative to traditional impressioning.

• Supplied with organised pin box to prevent errors during decoding.

• Produces both a working key and the lock’s code for future entries.

System advantages & limitations

• Widely regarded as one of the most effective methods for high-security lever locks.

• Relatively quick and highly repeatable once familiar with the process.

• Requires basic understanding of lever lock mechanics but is very user-friendly compared with other techniques.

• Intended strictly for lawful, authorised use by licensed locksmiths, safe engineers and security professionals.