Boker Number Punch Set is a handy set if you need to number your tools, Hardened Tips for strength and durability, Tapered Tip for a clean letter, Industrial Quality, Ideal for punching numbers on your work tools, Number anything metal, Made in Germany. Number of punches: 9 (1,2,3,4,5,6,7,8,0 - 6 can be 6 or 9), Size: 6mm