Specifications Type Professional 36Pcs Steel Metal Number and Letter Punch Set Size Optional 3mm 6mm Hardness HRC 58 62 Material High Quality Alloy Steel Set Composition 26 Uppercase Letters A Z 1 Symbol 9 Numbers 0 9 reverse 6 can be used as 9 Features 1 Premium Material Crafted from high quality alloy steel ensuring high strength and hardness HRC 58 62 for long lasting use in various projects 2 Comprehensive Set Includes 36 pieces uppercase letters numbers and symbol providing versatility for engraving names dates and more 3 Precise and Clear Each stamp features accurate dimensions and clear strokes enabling detailed and legible markings on multiple surfaces 4 Versatile Applications Ideal for permanently marking various materials like steel brass plastic leather aluminum silver and stainless steel suitable for jewelry crafting and more 5 Convenient Storage Comes in a sturdy and nice plastic case making it easy to organize and transport your stamping tools Package Included 26 x Uppercase Letter Stamps A Z 1 x Symbol Stamp 9 x Number Stamps 0 9 reverse 6 can be used as 9