Collection: Custom Locksmith Stamps & Industrial Markings

Locksmith Stamps

Most of our custom locksmith stamps come on 3/4" X 3/8" tools and consist of 1 line or 2 lines centered on each other. Maximum image width on that tool is 11/16". We typically target 3/32" letter height, but once a line contains more than 14 characters (& spaces) we start backing off letter height to make it fit. It is best if you can limit total characters on a given line to 16 or 17 maximum so we can assure a good letter height on the finished stamp. If you must have more characters we will simply go to a larger tool. Call or email us with your requirements.

Welder Stamps / Letter Stamps

Your stamp can be used on any annealed steel or softer metals. Stamps are not designed to work on "hardened" metals. If you are cold‑stamping on annealed steel with a hammer, you should try to limit image size to fit on a 3/4" tool and even smaller if your image is bold (i.e. moving a lot of metal). Softer metals like aluminum or brass allow for greater size flexibility when cold‑stamping. If your stamp consists of numbers and/or letters only, and a block font is sufficient, just tell us what you want and give us maximum width (left to right), and we will lay it up for you. If you have a specific logo, send us your art per the guidelines at the top of the page, and let us know desired size.

Custom Logo Stamp

Send us your art per the guidelines in the section below and tell us what size you want it. We find it easier if you simply list the most important dimension (width, height, etc). We will keep everything proportional when sizing it.

If you plan to cold stamp with a hammer on annealed steels we suggest keeping your image size limited to what will fit on a 1/2" to 5/8" tool. Ultimately, "ease of use" is determined by the hardness of the metal being stamped and the amount of metal being displaced. A sharp face image, like the one pictured here, or as with letter stamps, will be much easier to use than a bold image. If you are stamping softer metals you will have much more flexibility with size. Of course, all of our stamps can be used in a press or stamped into red hot metal which, again, allows for much greater flexibility with respect to size of the image.

Stamping Plastic

Our steel stamps work great on many plastics. You can strike the image into the plastic with a hammer, use a press, or heat the stamp and press it into the plastic. The featured picture shows stamps at just under 2 inches and 1 inch in width. The material stamped is High Density Polyethylene (HDPE) such as that used on many cutting boards in the home. The bottom most image is the same as that on the top. We just went a little deeper with it. We used gilders paste to darken the image (rub it in and wipe it off).

Stamps for a Press

For big jobs we can make stamps designed for 25-50 ton press capability. Our maximum image size is limited to whatever can fit into a 3.0" circle. In our world, that is a very large stamp. Total tonnage required will depend on final size and boldness of your image. We will not be able to define that for you but feedback from the field indicates that 50 ton may be required for our largest sizes when stamped into annealed steel. If possible, plan on line art or "outlining" your image for ease of stamping. Ultimately, required tonnage to make an impression will depend on total amount of metal being displaced. Bold images displace much more metal than those in outline form.

We can put the image on a flat block that you simply come down on top of with your press ram or we can design the tool with a post (or other configuration) that will fit into your press or stamp holder. Base pricing is determined by size. Special tool requirements quoted separately.