Features Highest quality steel marking punches Made from top quality controlled Sheffield chromium tool steel Hardened and tempered to precise limits to give long life and maximum safety Packed in sets of Letters A – Z (including and) or Number 0 – 9 Supplied in a PVC storage box . Type: Hand. Material: Steel. Tip size: 12.5 mm. Legend: Figure 0 to 9. Application: Suitable for workshop and site technicians..