Overview - ISO 10889-2:2016 (Tool holders with cylindrical shank, Part 2)
ISO 10889-2:2016 specifies dimensions, designations and complementary technical delivery conditions for Type A tool holders with a cylindrical shank - specifically shanks for tool holders of special designs. It is part of the ISO 10889 series for tool holders with cylindrical shank intended for machine tools with non-rotating tools (preferably for turning machines). All dimensions and tolerances are given in millimetres and tolerancing follows ISO 8015.
Key topics and requirements
- Scope and applicability: Type A tool holders for special designs used on machines with non-rotating cutting tools (turning operations preferred).
- Dimensions and tolerances: Figures and Table 1 in the standard define nominal diameters, lengths and key dimensions. Tolerancing is governed by ISO 8015; unspecified linear/angular tolerances default to class “m” (ISO 2768-1) and geometrical tolerances to class “H” (ISO 2768-2).
- Designation rules: A standardized designation format is required:
- “Tool holder”, reference (ISO 10889-2), type (A1 or A2), nominal diameter d (mm) and nominal length l (mm).
- Example: Tool holder ISO 10889-2 - A1 - 40 × 100
- Technical delivery conditions: Complementary delivery requirements include marking fields and mandatory indication of material in the marking field. Surface roughness and other details are specified in the figures.
- Symbol mapping: Annex A maps ISO 10889-2 symbols to ISO 13399 data-exchange symbols for compatibility with digital tool-data systems.
Practical applications and users
- Who uses it: Machine tool designers, toolholder manufacturers, CNC turning shops, procurement teams, and quality/inspection engineers.
- Why it matters: Provides consistent, interchangeable dimensions and marking rules that reduce misfits, improve tooling logistics, and simplify CAD/CAM and data-exchange integration. Useful for specifying replacement holders, designing special toolholder geometries, and ensuring compliance in supply chains for turning operations.
- Typical use cases: Specifying special-design tool holders for lathes, ordering standardized fixtures from suppliers, integrating toolholder data with tool management systems (via ISO 13399 mapping).
Related standards
- ISO 10889-1 - Cylindrical shank, location bore - Technical delivery conditions
- ISO 2768-1 / ISO 2768-2 - General tolerances (linear/angular and geometrical)
- ISO 8015 - GPS fundamentals and tolerancing principles
- ISO 13399 - Cutting tool data representation and exchange (referenced via Annex A)
By following ISO 10889-2:2016, organizations ensure consistent specifications for Type A cylindrical shank tool holders, streamline procurement and production, and facilitate digital tool-data interoperability.