Two dogs walk through the same gate in Somerset. Six months later, one tag reads exactly like it did on day one. The other is smooth where the owner's surname used to be. Same collars, same weather, very different engraving.
Dog tag engraving is one of the details that makes a lost dog easier to return quickly. On a good day it matters less. On the day your dog slips out of a back garden, it is everything. This guide covers what you can fit on a 38mm tag, what makes some engraving stay sharp for years while other engraving fades inside a year, and why readability in low light is the feature most owners overlook.
Quick answer: Dog tag engraving cuts letters into the surface of a metal tag, so the information sits below the polished face and cannot rub off. Deep laser engraving on stainless steel is built to last across years of ordinary UK wear.
Key facts about dog tag engraving
- Laser engraving on stainless steel is the only method that produces a tag readable for the lifetime of the dog.
- Stamped tags blur within 6 months of daily UK walks.
- A 38mm tag face carries 3 legible lines on the front plus the dog's name on the reverse.
- Printing on top of metal is not engraving and will wear off on a normal collar.
- Every Bailey & Coco engraved tag is depth-checked before it leaves our UK studio.
Who this guide is for
UK dog owners who have lost one tag to fading already, or who are choosing a first engraved tag and want to understand why engraving methods vary so much in lifespan. Written for the owner who plans to buy once.
Our engraving guidance comes out of running a 30-day weather simulation and a 6-month real-world trial on every new engraving batch before it reaches a customer's dog.
If you are comparing options for a tag that stays readable, our engraved dog tag collection shows the three finishes side by side.
What dog tag engraving actually is
Dog tag engraving is the process of cutting letters and numbers directly into the surface of a metal tag, so the information sits below the polished face of the metal rather than on top of it. The same technique is used for jewellery, military dog tags and industrial nameplates. Done well, it produces a tag that reads clearly in daylight and low light, and that ordinary wear cannot erase.
It is also the technique that puts clear daylight between a tag that holds up across years of ordinary wear and a tag that gives up inside a season. Not all engraved tags are engraved the same way, and not all "engraved" tags are actually engraved at all. The next few sections break down the differences that matter.
What fits: the layout that makes a 38mm tag work
Our engraved dog tags come in one considered size: 38mm. It gives enough space for clear, legible engraving while still sitting neatly on a standard collar. What can you fit on 38mm of metal? More than most owners think, if the layout is right.
The front of the tag is the identification face. We recommend three lines:
- Line 1: Your surname, in 16 characters or fewer. "Williams" fits comfortably. "Sutherland-Hughes" is tight but possible at a slightly reduced size.
- Line 2: House number and postcode, in 20 characters or fewer. "12 BA1 2LR" is ideal.
- Line 3: Mobile phone number, in 13 characters or fewer. "07700 900123" fits every UK mobile format.
If the tag has a reverse side, and on 38mm it does, the back carries the dog's name. This is the emotional, warm detail, and it also helps a well-meaning returner approach your dog calmly before dialling the number on the front.
Common mistakes owners make with the layout
Three things we see regularly, and all of them waste space:
- "If found, please call" takes up most of a line that could carry a phone number.
- Spelling out the full address where a postcode plus number would do the same job in half the characters.
- Adding the word "microchipped" as a warning. It used to be common advice. It no longer deters anyone and eats a whole line.
The goal of engraving is not to carry every possible piece of information. It is to carry the minimum that gets your dog home, in characters big enough to read at arm's length in failing British light.
What lasts: depth, material, split ring
Three things decide whether the engraving on your dog's tag is still readable in five years. Get all three right and you will not think about it again for the life of the dog. Get any one of them wrong and the tag will quietly let you down.
Depth
Shallow engraving polishes away as the tag swings against the collar hardware on every walk. Deep engraving cuts well below the surface, so the daily friction between tag and collar cannot reach the letters. Every Bailey & Coco tag is checked for engraving depth before it leaves our studio, and the depth is consistent across all three finishes.
Material
Our engraved tags sit on stainless steel. We chose it because it does not rust, does not tarnish meaningfully in British rain, and is hard enough to resist the small scratches that come from a concrete driveway or a car-boot clip. Plated or soft-metal tags can look smart in the product photo and go dull within six months.
Split ring
The split ring is the small hardware loop that connects the tag to the collar. It is the most common failure point on a cheap tag. Our split rings are strength-tested to 250kg, the same hardware rating we use across Bailey & Coco collars and harnesses. If you have ever watched a tag spin off a collar in a park, you know why a good ring matters.
Bottom line: deep laser engraving, stainless steel, and a 250kg split ring. Three factors to get right, with no real shortcuts.
What stays legible: fonts, contrast, size
A tag that cannot be read at arm's length has already half-failed its job. Legibility is the feature owners underestimate most often, because the tag looks fine when they pick it up at home. It has to look fine to a well-meaning stranger holding it at a collar distance in a park at dusk.
Font
We use a clean serif for surnames and a modern sans for numbers. Serifs make a long surname easier to parse at distance, and sans numerals keep phone numbers unambiguous. Both tested well in low-light legibility reviews on a moving collar. If you have strong views on layout, our team can hand-set a specific typeface.
Contrast
Contrast is how the engraved text reads against the finish of the tag. On silver, deep engraving gives a soft matte letter against the polished face; the contrast is quiet but clear. On black, the engraving removes the black coating and shows bright silver underneath, which is the highest-contrast option and the easiest to read from a distance. On rose gold, the engraved letters show as warm silver against the pink finish, which looks premium and reads cleanly.
Size on the tag
The 38mm size gives us room for three legible lines on the front plus a dog's name on the reverse. Trying to squeeze four or five lines into the same face forces every character smaller and starts to compromise readability. We keep the layout disciplined so the tag stays legible the first time and the thousandth time.
Engraving method comparison at a glance
| Method | Typical lifespan | Readable at arm's length | UK weather resistance |
|---|---|---|---|
| Laser engraving | Lifetime of the dog | Yes | Excellent |
| Diamond-drag | Many years on hard metals | Yes | Very good |
| Stamping | 6 to 18 months | Only when new | Moderate |
| Printed or stickered | Weeks to months | Only when new | Poor |
Bottom line: a 38mm tag face with the right font carries three legible lines that stay readable at arm's length across years.
Engraving methods compared
Four common production methods produce very different results. Knowing which is which helps you avoid buying the wrong tag twice.
- Laser engraving. A focused beam burns a precise, deep channel into the metal. Clean, durable, and the method we use across our full engraved range.
- Diamond-drag engraving. A diamond-tipped stylus scratches the letters into the surface under pressure. Slightly shallower on hard steel but very durable on softer brass and aluminium.
- Stamping. A metal die is pressed into the tag blank under force. Fast and cheap at scale, but shallower than laser and usually limited to soft metals, where the letters can blur as the tag wears.
- Printing or stickering. Ink or a vinyl layer sits on top of the metal. Novelty only. It will wear off within weeks on an active collar.
For a fuller look at the finish side of the decision, our dog tag engraving guide goes into finish-by-finish detail.
The most durable engraving method: laser engraving on stainless steel. It cuts deeper than stamping, survives daily collar friction, and stays readable for years.
UK legal: what engraving has to do
An engraved dog tag is a practical way to meet the Control of Dogs Order 1992, which requires any dog in a public place in the UK to wear a collar with the owner's name and address on it. The law is short and clear, and it does not specify a font size or a layout, but in practice a tag is only "sufficient" identification if a stranger can actually read it. Deep laser engraving on stainless steel stays readable for years; stamped or printed information often does not.
A phone number is not legally required, but it is very strongly recommended by vets, the Kennel Club and rescue charities. A tag with only a name and address will eventually get your dog home; a tag with a mobile number gets your dog home in the next hour. For a deeper read on the legal wording, see our full breakdown of what to put on a dog tag.
Choosing your finish: silver, black or rose gold
All three Bailey & Coco engraved dog tags use the same stainless steel core and the same deep laser engraving, so durability does not change between finishes. What changes is how the tag sits on the collar visually, and how the engraved text reads at a glance.
Silver
The classic, understated finish. It suits every collar in the Bailey & Coco range, from heritage plaid tweed to plain leather, and looks appropriate on every breed. The silver engraved dog tag is the safe, timeless pick if you are not sure which to choose.
Black
The highest-contrast option. The engraving removes the matte black coating and shows bright silver underneath, which reads from further away and in lower light than any other finish. If your dog walks at dawn or dusk, or has a dark coat that would otherwise hide a silver tag, the black engraved dog tag is the pick.
Rose gold
The warmest of the three. It flatters darker coats beautifully and pairs particularly well with our heritage plaid and mulberry tweed collars. The rose gold engraved dog tag is our most-gifted finish.
See all three side by side in the full engraved dog tag collection.
Care and maintenance
An engraved dog tag is close to zero maintenance, but a few minutes of thought will stretch its life by years.
- Rinse the tag under a tap after a beach walk. Salt water is hard on hardware.
- Wipe mud out of the engraving with a soft cloth, not wire wool. Wire wool will dull the finish.
- Check the split ring every few months. If it has opened even slightly, replace it.
- Keep the tag away from keys or metal training clickers in a pocket. Surface scratches shorten life.
When to re-engrave
Deep laser engraving is designed to stay clear through ordinary wear and should remain legible far longer than printed or shallow-marked tags. If yours has faded, the original engraving was too shallow or the base metal was too soft, and replacing the tag is a better call than trying to recut the same blank. The other clear reasons to replace a tag are practical:
- You move house.
- You change phone number.
- The ring has opened or the tag is physically bent.
- You cannot read the tag at arm's length in daylight.
We keep a record of what we engrave, so a replacement can match your original to the letter.
A tag worth the minutes it takes to order
Get the engraving right once and the tag will outlast the reason you ever needed to think about it. Shop the full engraved dog tag collection, hand-finished in the UK in silver, black and rose gold, with free delivery on orders over £50.
See also our why dog tag engraving fades and how to prevent it.
Frequently asked questions
How long does dog tag engraving last?
Deep laser engraving on stainless steel should last the full lifetime of the dog. Surface polishing will happen gradually over years, but the engraved characters sit below the polished face and stay crisp. Shallow engraving on soft metal can fade within six months, which is why the depth and the base metal matter.
How much text fits on a 38mm dog tag?
Three legible lines on the front, with up to about 16 characters on the surname line, up to 20 on an address line, and up to 13 on a phone line. The reverse side can carry a dog's name at a larger size. All numbers are generous guidance; our team hand-fits each engraving, so if a name is slightly longer the layout adjusts.
Which engraving method is best for a dog tag?
Laser engraving, on stainless steel. It is the deepest of the four common methods, and it stays crisp on a hard base metal that does not tarnish or rust in British weather. Diamond-drag is a strong second choice on softer metals. Stamping and printing are worth avoiding for long-term identification.
Does dog tag engraving fade?
Good engraving does not. If a tag has faded, the engraving was too shallow, or the base metal was too soft, or the "engraving" was actually printing on top of the metal. Deep laser engraving on stainless steel holds its detail across years of ordinary wear.
Can you engrave both sides of a dog tag?
Yes. On our 38mm size, the front typically carries the owner's details on three lines, and the reverse carries the dog's name. You will see both options on the product page.
Which finish reads clearest?
Black. The engraving removes the matte black coating and shows bright silver underneath, which is the highest-contrast combination of the three finishes. Silver is still very legible in daylight, and rose gold is warmer and more aesthetic but slightly lower contrast at distance.
Is dog tag engraving a UK legal requirement?
A tag is. The Control of Dogs Order 1992 requires any dog in a public place in the UK to wear a collar with the owner's name and address on it, and an engraved tag is a practical way to meet that rule. The engraving itself is not specified in law; the information on the tag has to be legible, and engraving is the method that keeps it that way.
What if I make a typo when personalising?
Let us know within 24 hours and we will re-engrave at no charge. After 24 hours we will produce a replacement at cost. The system flags typos in common fields before the order is submitted, so the risk is low.
