The Little Number on Your Desk or Cabinet Lock Can Get You a New Key
A short explanation of code-cut keys, and why the manufacturer name matters as much as the number.
September 23, 2026 · 3 min read

Office desks, filing cabinets, and metal tool boxes usually come with a lock that's small, simple, and easy to lose the key to. What most people don't notice until they've already lost the key is that the lock itself is often carrying a clue. Flip over the lock face or look closely at the cylinder and there's frequently a short code stamped right into the metal, a combination of letters and numbers that the manufacturer used when the lock was made.
What a Code-Cut Key Actually Is
A code-cut key isn't a copy of an existing key. It's generated from scratch, based on the code stamped on the lock, using the manufacturer's own cutting specifications for that code. In general trade terms, cutting by code means working backward from the lock's internal pin or wafer pattern rather than tracing an existing key's shape. It's a different process from duplication, and it's the reason a code can sometimes get you a working key even when the original key has been gone for years.
This matters most when duplication simply isn't an option. If a desk lock has never had a spare key made, or the only key that ever existed walked out the door with an employee who left years ago, there's nothing to copy from. A code, if it's still legible, gives the shop something to work from even without an original key: give them the manufacturer and the code, and they can check whether generating a key for your lock is possible.
Where to Find the Code
The code is usually stamped somewhere on the lock face itself, on the cylinder, or on a small metal tag near the keyway. It's easy to miss because it's small and often worn down on older furniture. A flashlight and a close look at the lock, rather than the drawer or cabinet around it, is usually enough to spot it.
- Check the face of the lock cylinder for a stamped number or letter-number combination
- Look for a small metal tag riveted near the keyway on some cabinet and desk locks
- Note the manufacturer name printed or stamped on the lock as well as the code itself
- If the code has worn away completely, the lock's brand and model, if visible, can still help
Why the Manufacturer Name Matters
A code on its own isn't enough. That's why JK Locksmith Co. asks for both the manufacturer and the code together, then checks whether generating a key for that lock is possible. Bringing in a photo of the lock face, code and manufacturer name included, is the fastest way to get a straight answer on whether it can be done.
It also helps to write down the code exactly as it appears, letters, numbers, and any punctuation or symbols mixed in. It's easy to misread a stamped code, especially on an older lock where the metal has dulled or picked up a bit of surface rust. A clear photo taken straight on, without a shadow falling across the stamp, avoids that problem and gives an accurate read the first time.
What This Covers, and What It Doesn't
This kind of code-based key cutting is mainly useful for desk locks, filing cabinet locks, and tool box locks with a manufacturer code on the face. A car key is a separate matter: car key duplication and programming is one of the shop's main auto services, so call the shop if that's what you need.
It's also worth being upfront that not every code can be worked with. Some codes are too worn to read, and the shop can only say whether generating a key is possible once it has the manufacturer name and the code. That's exactly why the check comes first, and it takes the guesswork out of whether a trip to the shop is worth making.
Bring the Code In and Ask
If you've got a locked desk, filing cabinet, or tool box with no key and a code stamped somewhere on the lock, that's a quick thing to check. Stop by JK Locksmith Co. at 47705 West Rd, Suite B101 in Wixom, Monday through Friday, 9:00 AM to 4:30 PM, with a photo of the code and manufacturer name, or call (248) 347-1133 first. You can also email the photo to jklock@jklocksmith.com, and the shop can check whether generating a key for your lock is possible.
JK Locksmith Co., (248) 347-1133
Call (248) 347-1133More articles
Got a Key No One Else Will Copy? Bring It to the Wixom Shop
A look at the odd keys most stores turn away, and how the in-shop wall in Wixom handles them.
Just Moved In? Here's How to Think About Rekeying Your Locks
The locks on a home you just bought have a history you don't know. Here's how to think through what to do about it.