JONMON Leather Letter and Number Stamps Punch Set - 36Pcs 6mm Leathercraft Metal Capital Alphabet Stamping Tools with Handle Review (2026)

Who this stamp set fits

This set fits a leatherworker who wants to personalize wallets, card holders, belts, keychains and similar small goods with names, initials, dates or short words struck one letter at a time. Because the letters and numbers are separate stamps rather than an adjustable text holder, it works best for someone comfortable spacing out a word by eye or with a guide line, striking each character in turn with a mallet. A maker who needs to stamp long runs of identical text quickly, such as a shop personalizing dozens of items a day, may prefer a fixed text plate stamp instead, since the one letter at a time approach here rewards patience over speed.

What is included and the build

The set totals 36 stamps, 26 capital letters covering A through Z and 10 digits covering 0 through 9, made of alloy steel sized at 6mm, roughly a quarter inch, along with a separate embossed handle that seats each stamp for striking. Because the letters are individual pieces rather than fixed in a holder, each one needs to be set in the handle, positioned, and struck before moving to the next character, which is slower than a one piece text stamp but gives full control over spacing and lets a single letter be swapped or reordered without buying a new tool.

Using it on leather

The standard technique is to dampen the leather with a wet sponge first, which softens the fibers so the stamp compresses them cleanly rather than just marking the surface, then seat the desired letter or number in the handle and strike it with a mallet using controlled, even force. Getting consistent depth across a full word takes some practice, since each letter is struck separately and uneven force between strikes can leave some characters deeper than others. The stamps are best suited to firm, cased vegetable tanned leather that holds an impression, and light strikes on soft or rough textured leather may not show clearly.

How it compares with other stamp sets in this guide

In this guide, a Tandy Craftool Sheridan alphabet set at a larger half inch size scores highest, reflecting Tandy's reputation and a bigger, bolder letter for visible branding work. A similarly sized 36 piece capital and number set from OwnMy scores a touch higher too, while sets from other budget brands land close to or below this JONMON set. Compared with a 27 piece capital only set at a larger 13mm size, this 6mm JONMON set trades letter size for a finer, more compact stamp better suited to smaller items like card holders where a half inch letter would look oversized.

Bottom line

For a leatherworker who wants to add names, initials or short words to wallets, belts and small goods at a compact 6mm size, this 36 piece capital letter and number set with its own handle covers the basics without a big investment. It suits cased vegetable tanned leather best and rewards a steady hand and some practice runs on scrap before committing to a finished piece, since each letter is struck individually rather than aligned in a fixed holder. Buyers who want larger, bolder lettering or a faster way to stamp long runs of text should look at a bigger stamp size or a fixed text plate instead.

Frequently asked questions