With the Facom 292A.4 letter punch set, you mark metal components, machinery parts, and hand tools permanently and reliably. Featuring a 4 mm character height, these punches deliver crisp, uniform lettering across demanding surfaces. The 26-piece set is crafted from hardened carbon steel with a 60 hrc rating, ensuring the 8x8 mm square shanks with an overall length of 70 mm withstand heavy hammer impacts without premature wear. Whether you are stamping serial numbers, identifying workshop parts, or tagging tools to prevent theft, this set gives you the precision you need. Keep all 26 pieces organized and protected in the practical plastic storage box.