Overview
ISO 5610-3:2014 - "Tool holders with rectangular shank for indexable inserts - Part 3: Style B" defines the geometry, designation and basic requirements for straight rectangular-shank tool holders (style B) with a cutting edge angle κ = 75° for side cutting. The standard targets holders intended for indexable inserts (typically hardmetal/carbide or similar cutting materials) mounted by clamping and used in turning operations.
Key topics and technical requirements
- Scope and application: Tool holders with straight rectangular shank for side cutting in turning operations; intended for indexable inserts mounted by clamping.
- Dimensions and figures: Detailed dimensional tables and pictorial representations for two insert shapes:
- Rhombic (shape C)
- Square (shape S)
Only the tabulated dimensions are mandatory; pictorials are illustrative.
- Cutting geometry: Cutting edge angle κ = 75°; recommended rake and inclination angles are shown but may vary by application.
- Designation system: Prescribes a structured designation code (tool holder ISO 5610-3 - [type][insert shape][style][clearance][hand][hxb][length][cutting edge length]) - examples are provided in the standard.
- Material: Recommends steel with a tensile strength of at least 1 200 N/mm² for the tool holder body.
- Mounting and delivery: Standard mounting types are listed in the dimensional tables; tool holders are delivered complete with clamping device but without inserts. Alternative mounting styles are allowed by agreement.
- Corner radii and insert compatibility: Specifies nominal corner radius values for standard cutting edge lengths (e.g., l = 6.4 mm → r ≈ 0.4 mm; l = 12.7/15.88 mm → r ≈ 1.2 mm); other radii require dimension determination per ISO 5610-1.
- Tolerances and measurement: Tolerances for key dimensions are referenced to measurements made with master inserts and shims where applicable.
- Marking: Holders must be marked with manufacturer’s symbol and packaging must reference ISO 5610-3:2014.
Applications and users
- Practical for manufacturers and suppliers of turning tool holders, machine-tool engineers, tooling buyers, and CAM/tooling data engineers.
- Typical uses: external and side turning operations where a rectangular-shank holder with a 75° side-cutting geometry is required, and where compatibility with standard indexable inserts and clamping systems is needed.
- Useful for quality control, procurement specifications, toolroom design and CAD/CAM tool libraries.
Related standards
Keywords: ISO 5610-3:2014, tool holders with rectangular shank, Style B, indexable inserts, cutting edge angle 75°, turning operations, tool holder dimensions, designation, clamping device.