Overview
ISO 7755-9:2013 defines the main dimensions of the cutting part for hardmetal cone burrs of 60° and 90° point angle, designated by the style symbols J and K. This part of the ISO 7755 series focuses on the geometric sizing required for manufacturing, specifying and documenting cone-shaped burrs used in deburring, shaping and finishing operations on hard materials.
The standard is a second edition (2013) and complements ISO 7755-1, which covers tolerances, shank dimensions, helix direction and designation rules.
Key Topics
- Scope: Main cutting-part dimensions for 60° (style J) and 90° (style K) cone hardmetal burrs.
- Dimension series: Representative series of sizes are given in Table 1 (dimensions in millimetres). Typical dimension sets (a = 3, 6, 10, 12, 16 mm) correspond to paired values shown in the standard for 60° and 90° cones (see Table 1 for full numeric detail).
- Measurement guidance: The cutting part length is measured from the small flat at the cone base; manufacturers are responsible for minimizing the flat where feasible.
- Normative linkages: Tolerances on cutting diameter, helix direction, shank diameter and length, and burr designation are specified in ISO 7755-1 and therefore apply when using this part.
- Informative mapping: Annex A provides a relationship between ISO 7755-9 designations and the ISO 13399 cutting tool data representation series (for properties such as cutting diameter, cutting edge length and point angle).
Applications
ISO 7755-9:2013 is directly applicable to:
- Manufacturers specifying consistent hardmetal burr geometries for production and quality control.
- Purchasing and inventory systems that require standardized tool dimensions for interchangeability.
- CAD/CAM and tooling databases where accurate cutting geometry and attribute mapping (ISO 13399) are required for tool selection and process programming.
- Tooling engineers and process planners who need a recognized reference for cone burr sizing in finishing, deburring and profiling tasks.
Benefits include improved interchangeability between suppliers, clearer technical communication in procurement, and more reliable tool data exchange for digital systems.
Related Standards
- ISO 7755-1 - General specifications, tolerances and designation rules for hardmetal burrs.
- ISO 13399 series - Cutting tool data representation and exchange; Annex A of ISO 7755-9 links key symbols to ISO 13399 properties.
For implementation, consult ISO 7755-9:2013 alongside ISO 7755-1 for tolerances and shank specifications and ISO 13399 for digital data mapping.
