With the Turnus 328-106 number punch set, you apply permanent and indelible markings to your workpieces. This 9-piece standard set covers digits 0 to 9, allowing you to number tools, machine components, and metals with a tensile strength of up to 900 N/mm² (27 HRC). The 6 mm character height delivers crisp, easily readable impressions with every strike. Featuring a shank width of 9 mm and an overall length of 70 mm, each punch provides a secure, stable grip under the hammer to ensure precise identification throughout your workshop.