The SMART PACK 3mm Brass 0–9 Number Set is a precision-crafted numbering set designed for high-speed batch coding machines. Made from high-quality brass, these number punches provide excellent durability, sharp impressions, and resistance to wear, ensuring long-lasting performance in continuous coding operations. With a 3mm character height, the set is ideal for printing clear and legible batch numbers, manufacturing dates, and other numeric codes on a variety of packaging materials.