ISO 10242-2:2008

Overview

ISO 10242-2:2008 defines the interchangeability dimensions and tolerances, in millimetres, for punch holder shanks - Type C, used in press tools. The standard gives dimensional drawings and a table of nominal sizes, guidance on suitable materials, minimum hardness requirements, and a clear designation format for identification. It ensures consistent manufacturing and reliable interchangeability of punch holder shanks across toolmakers and press shops.

Key Topics

• Scope: Specifies dimensions and tolerances for punch holder shanks Type C intended for use in press tools.
• Dimensions: Detailed geometry is provided in a figure and a dimensional table (Table 1) covering common body diameters (examples include D = 20, 25, 32, 40 mm) and associated features. Surface roughness values are shown in micrometres.
• Tolerances: Interchangeability tolerances are given in millimetres to support consistent fit and function between mating components.
• Material and Hardness: Manufacturer chooses the material, but the minimum hardness is specified as 140 HB (Brinell).
• Designation: A standardized marking is required. Example format:
  • Punch holder shank ISO 10242-2 C-20
• Updates: This second edition aligns surface texture indications with ISO 1302:2002.

Applications

ISO 10242-2:2008 is directly applicable to:

• Toolmakers and die designers specifying punch holder shank Type C for mechanical presses.
• Manufacturers producing standardized punch holder shanks for the tooling market.
• Maintenance and production engineers replacing or sourcing interchangeable punch holders.
• Quality control and inspection teams verifying dimensional conformity and hardness (referencing ISO 6506 for Brinell hardness testing).
• Procurement professionals who require unambiguous part designation to ensure compatibility across suppliers.

Benefits:

• Ensures interchangeability between punch holder shanks from different manufacturers.
• Reduces downtime by simplifying replacement and inventory control.
• Facilitates global sourcing and standard-compliant manufacturing.

Related Standards

• ISO 10242-1: Tools for pressing - Punch holder shanks - Part 1: Type A
• ISO 10242-3: Tools for pressing - Punch holder shanks - Part 3: Type D
• ISO 1302:2002 - Geometrical Product Specifications (GPS): Indication of surface texture
• ISO 6506 (all parts) - Metallic materials: Brinell hardness test

Keywords: ISO 10242-2:2008, punch holder shank, punch holder shanks type C, tools for pressing, interchangeability dimensions, hardness 140 HB, press tools, ISO standard.