Brüder Mannesmann 27-Piece Letter Punch Set 3 mm (243-B-3MM)

For metalworkers, locksmiths, and workshop professionals who need to permanently mark steel, wood, plastic, or leather, this 27-piece letter punch set delivers crisp, legible characters with every strike. The set includes the complete alphabet from A to Z plus an ampersand (&) symbol, each with a 3 mm character height, making it ideal for identification, serial numbers, and custom text on tools, equipment, and components.

Key specifications

• Set type: Letter punch set
• Number of pieces: 27
• Character set: Uppercase letters A-Z, plus '&' symbol
• Character height: 3 mm
• Material: Hardened carbon steel
• Finish: Tempered and sandblasted
• Punch length: Approx. 60 mm
• Shank profile: Square
• Shank size: Approx. 6 x 6 mm
• Hardness (punch tip): Approx. 58-62 HRC
• Marking type: Permanent indentation
• Corrosion protection: Oiled finish
• Storage: Robust plastic storage box

Why choose it

Each punch is forged from hardened carbon steel and tempered to 58-62 HRC, ensuring the tips resist deformation even after repeated use on tough materials. The square shank provides a secure grip and prevents rolling on the workbench, while the oiled finish guards against rust during storage. The included plastic case keeps all 27 punches organized and ready for the next job.

Ideal use cases

• Stamping identification numbers on metal parts and tools
• Personalizing woodworking projects or leather goods
• Marking plastic components for traceability
• Creating custom text on nameplates and tags

Good to know

The 3 mm character height is suited for fine, detailed marking where space is limited. For best results, use a hammer with appropriate weight and strike the punch squarely on a solid surface. The set is suitable for both professional and hobbyist applications.