- Bayside and South East Melbourne
- Victoria Police Security Registration No. 72185491
- Mon to Fri 7:00 am to 6:00 pm, Sat 7:00 am to 1:00 pm
- 0421 767 767
November 5, 2026
If the original safe key is in your hand today, you are in the best position you will ever be in to get a spare. A copy can be taken straight from that key, and the job comes down to choosing the route and deciding who will hold the new key. Once the last key is gone, the same job turns into a recovery, with more paperwork and more waiting.
Why a Safe Key Is Cut Differently From a Door Key
A door key is cut on a blank that fits a common keyway. A key-operated safe lock is a small cylinder or lever lock built into the door, and its key has its own blank shape, length, and bitting. A blank that looks close to the original and slides in part of the way will not move the wafers or levers inside.
The cut itself is a pattern of depths, one per position along the blade. Each depth lifts one wafer or lever to the height the lock expects, and the lock turns only when all are aligned. A copy that is a fraction out at one position will drag, bind, or fail to throw the bolt, so the cutting requires the correct blank and a machine setup for that profile rather than a general-purpose kiosk.
Some safes also carry a number on the key or the lock, called a key number or key code. The number refers to a set of depths, which is why a spare does not always have to be traced from an existing key.
Three Ways a Spare Gets Made
The original is clamped in the cutting machine, and the spare is cut to match it. This is the fastest route and requires no paperwork, provided the right blank can be found. The copy is only as good as the cut it was taken from.
The number is looked up, and the key is cut to the listed depths on the correct blank. This route works when the original cannot be left with the locksmith for the visit.
Where the original cannot be copied, and no readable number is found, the documentation that came with the safe shows whether replacement keys are available and which details to have ready, such as the model and serial number. This is the slowest of the three routes.
The three routes can also be combined. A locksmith may cut a spare from the original and then check it against the number to ensure the two sources agree before the key goes into service. If they disagree, the locksmith explains which one to trust before cutting a second spare, and you decide whether the extra check is worth the extra time.
A locksmith can tell which of the three suits your safe after seeing the key and the lock. The choice depends on the blank, on whether a number is present, and on what the safe's paperwork allows.
Steps to Take Before Anyone Cuts a Copy
Work through these in order, because the early steps cost nothing and make the later ones quicker.
Keep the original away from a kiosk that cuts from a rack of general blanks. A blank that nearly fits can jam in the lock, and a jammed or snapped safe key is a locksmith's job to remove from the lock itself.
Keep a count of keys on the register, not the key number itself. Store the number in a sealed envelope held away from the safe, so one lost document cannot hand someone both the key code and the make of the safe.
Controlling Who Holds Safe Keys in an Office
A safe key has no name on it and no expiry. Whoever holds it can open the safe at any hour, so the control sits in the paperwork around the key.
Keep one page that lists each key by a tag, who holds it, the date it was issued, and the date it came back. The page does not need the safe's contents. It needs the count, so that an extra key appearing is noticed straight away.
Where the safe holds cash or records that matter to the business, put the original with one person and the spare with another, in different places. Nobody has both keys by default, and either holder can open the safe if the other is away.
When a staff member who held a key leaves, the key comes back and the register is updated the same day. The same applies when a key holder moves into a role that no longer requires the safe to be opened. A key that is not returned and cannot be found is a reason to have the safe lock replaced, which is a cleaner fix than hoping the missing key stays unused.
Decide in advance who may order a copy and tell the locksmith, so a request from anyone else is checked before it is acted on. A key cut without the owner's knowledge is a spare nobody is accounting for.
When to Call the Locksmith
Call a locksmith rather than improvising if the key already catches in the lock, if the safe has a number you cannot read, or if you suspect a key has been copied without permission. Do not force a stiff key or spray a general lubricant into the safe lock, because a bent wafer or a gummed lever turns a spare key job into a lock replacement.
A small safe key carries the same authority as the safe door. Cut the spare while the original is in your hand, decide who holds each key before it leaves, and write down the count.
Frequently Asked Questions
The locksmith will want to test the key in the lock, and a wrong digit in the number will result in a key that does not turn. Cutting off-site without a trial fit risks a second visit. A trial on the safe itself catches the error on the day.
On some models it is stamped on the head of the key, and on others it appears on the face of the lock cylinder in the door. A key worn smooth may have lost it, in which case the lock face is worth a look under good light with the door open.
Yes. Turn the spare through the full bolt travel, with the door open, each time the register is checked. A key bent on a ring, or a lock that has stiffened, then shows up while the original still works, not on the day the spare is the only key left.
Yes, if the original key is in hand. A second-hand safe also arrives with an unknown number of keys already cut, so a new lock is worth considering even when a key came with it, and it is the route to take when neither the key nor a number can be found.
No. A tubular key carries its cuts in a ring around the end of a round shaft and is cut on a dedicated tubular key cutter, not the flat-key machine used for house keys. Some small safes and cash boxes use tubular locks, so the key's shape tells the locksmith which cutter to bring.
Some safes have two separate key locks that must both be turned before the door opens, so no single person can open it. Each lock has its own blank and its own cuts, so each needs its own spare, and the spares follow the same rule as the originals: never both on one ring or with one person.
Bring the original safe key to be matched and copied — a spare cut while the original is still in hand avoids a slow recovery once every key is gone. True Locksmith serves Bayside and South East Melbourne. Call 0421-767-767.
