Letter Punch Set
Our Letter Punch Sets are manufactured from high-carbon, high-chromium tool steel (EN31 / HCHCr), vacuum hardened to 58–62 HRC for exceptional impact toughness and long service life. Each character is precision CNC-machined and hand-finished to produce crisp, deep, and well-defined impressions on metals, plastics, and leather — even with hand striking. The shank is precision-ground for a clean fit into holder blocks. Available in complete A–Z alphabets and 0–9 number sets in sizes ranging from 3mm to 25mm character height. Ideal for part traceability, batch coding, serial numbering, and brand marking.
Key Specifications
- Material
- EN31 / HCHCr High Carbon Chrome Steel
- Hardness
- 58–62 HRC
- Character Set
- A–Z (26 pcs) + 0–9 (10 pcs)
- Available Sizes
- 3mm to 25mm height
- Shank
- Precision ground, standard size
- Finish
- Black oxide rust-resistant coating
Features
- Vacuum hardened EN31/HCHCr tool steel
- Precision CNC machined character faces
- Crisp, deep impressions with hand or press striking
- Rust and corrosion resistant finish
- Available from 3mm to 25mm character height
- Complete A–Z and 0–9 sets available
Applications
- Metal Part Traceability Marking
- Batch & Serial Number Stamping
- Tooling Identification
- Leather & Rubber Stamping
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