Capri Tools 1/8 in. Letter and Number Stamp Set - Durable Imprints

In this review the Capri Tools Professional 1/8 in. Letter and Number Stamp Set is evaluated for makers and metalworkers who need consistently sharp, true-to-size characters. The bottom line: this 36-piece set is best for hobbyists and small-shop fabricators who stamp leather, wood, copper, brass, aluminum or mild steel and want crisp, repeatable impressions. The review finds the premium Chrome Vanadium construction and differential heat treatment deliver durability and clean marks, while the engraved sizing makes selecting and orienting stamps straightforward.

Key Features

• Material and heat treatment: Differential heat treatment with Chrome Vanadium steel gives a 62 HRC stamping end for crisp imprints and a 42 HRC hammering end that resists repeated strikes.
• True-to-size characters: Large, precisely machined 1/8 in. letters and numbers produce consistent, readable impressions on a range of materials.
• Complete set: Includes 36 pieces covering uppercase A-Z, numbers 0-9 and an ampersand, with a single interchangeable 6/9 stamp to save space.
• Engraved identification: Each stamp has sizing and letter identification on the front side to speed selection and ensure correct orientation before hammering.
• Storage cases: The set ships in two heavy-duty cases that keep letter and number stamps organized and protected between uses.

Who It's For

This set is aimed at jewelry makers, leatherworkers, hobby machinists and small fabrication shops that need high-quality alphanumeric impressions without investing in larger industrial tooling. The 1/8 in. size suits projects where clear, compact characters are required, such as custom tags, part marking and personalized leatherwork.

Those who should look elsewhere include users who need very large characters, hardened tool steel for heavy industrial production beyond mild steel, or specialized fonts and pictograms; this set focuses on standard uppercase letters, numbers and ampersand only.

Pros & Cons

Pros

• High stamping-end hardness produces clean, crisp impressions on several materials.
• Durable hammering end reduces mushrooming and extends tool life under repeated strikes.
• Engraved sizing and identification makes orientation and selection quick and reliable.
• Well organized in two heavy-duty cases for easy storage and transport.

Cons

• Shank size is 1/8 in., which some users find perfect but others may consider small for heavy industrial fixtures.
• Only one ampersand and a combined 6/9 means fewer interchangeable symbols if a wider character set is required.

Specifications

Brand	Capri Tools
Set size	36 pieces
Character size	1/8 in. letters and numbers
Material	Chrome Vanadium steel (differential heat treated)
Stamping hardness	62 HRC stamping end
Hammering hardness	42 HRC hammering end
Included characters	Uppercase A-Z, numbers 0-9, ampersand (&), 6/9 interchangeable

Our Verdict

The Capri Tools 1/8 in. stamp set is a solid, well-made option for crafters and light shop users who need consistent, readable imprints across leather, wood and mild metals. Its hardened stamping face, engraved identification and durable storage cases make it good value for anyone seeking a compact, reliable alphabet and number toolkit.

Frequently Asked Questions

Can these stamps mark steel?
Yes; they are intended for mild steel and work well on softer steels and common metals such as copper and brass.

How is orientation handled?
Each stamp has engraved sizing and letter identification on the front side to help find the right stamp and orientation quickly.

What is included in the set?
The set includes 36 stamps: A-Z uppercase, numbers 0-9, and an ampersand, stored in two heavy-duty cases.