Car Locksmith Tools Explained | What Auto Locksmiths Use

Key cutting machines

We carry two types. A code cutter creates a key from scratch: we decode the lock (or pull the key code from vehicle data) and cut a fresh blade to factory specification. A duplicator traces an existing key to make a copy. Code cutting is the skilled part — it means we can make a key when there is no original to copy, which is why dealers' tow-and-wait model isn't the only option.

Programmers and diagnostic tools

Modern keys are electronic, not just metal. Programming equipment connects through the OBD port to add a new key's chip to the car's immobiliser, erase lost or stolen keys, or resynchronise a fob that's lost its pairing. The software is model-specific and regularly updated, and it needs the right security access for each manufacturer — a small number of very new models are locked down so only dealers can do this part.

Entry tools: picks, decoders and wedges

For lockouts we use picks and decoders that manipulate the lock's mechanism without damaging it, sometimes with a small air wedge to create working space at the door. No drills, no broken windows, no scratched paint. Entry via picking requires knowing the lock's internals for that specific make and model.

Scopes and inspection tools

A slim inspection scope lets us see inside a door cavity or an ignition barrel to find broken key fragments, corrosion, or mechanical damage without stripping the door. It keeps the job precise and avoids unnecessary disassembly.

Why it isn't a DIY job

The tools are only half the story. The other half is trade knowledge: which key type your car uses, whether the blade can be decoded from the lock, which programmer and procedure that manufacturer requires, and how to avoid damaging modules and wiring. A £20 DIY key bought online still needs cutting and programming — and a badly attempted job can leave the immobiliser locked or the ECU damaged, turning a one-visit fix into an expensive recovery.

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