ISO 10889-3:2016

• Abstract:

  ISO 10889-3:2016 specifies dimensions, designations, and complementary technical delivery conditions for tool holders with a rectangular radial seat of types B1 to B8 with cylindrical shank in accordance with ISO 10889‑1. ISO 10889 is applicable to tool holders with cylindrical shank for machine tools with non-rotating tools, preferably for turning machines. For non-standardized tool holders with a rectangular radial seat such as the tool holders shown in the figures, it is advisable to apply the corresponding specifications of this part of ISO 10889.

• Status: Published
• Publication Date: 09-Mar-2016
• ICS: 25.060.20 - Dividing and tool-workpiece holding devices
• Technical Committee: ISO/TC 29/SC 9 - Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces
• Drafting Committee: ISO/TC 29/SC 9 - Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces
• Current Stage: 9093 - International Standard confirmed
• Start Date: 22-Oct-2026
• Completion Date: 24-Oct-2026

• Revises: ISO 10889-3:2004 - Tool holders with cylindrical shank — Part 3: Type B with rectangular radial seat
• Effective Date: 04-Nov-2015

Overview

ISO 10889-3:2016 - "Tool holders with cylindrical shank - Part 3: Type B with rectangular radial seat" specifies the dimensions, designation rules, and complementary technical delivery conditions for Type B tool holders (B1–B8) with a cylindrical shank. Intended primarily for machine tools with non-rotating tools (preferably turning machines), this part of ISO 10889 defines the geometry and delivery requirements for tool holders that have a rectangular radial seat.

Key Topics

• Scope and types: Standard covers Type B1 to B8 tool holders shown in Figures 1–8 and listed in Table 1 (all dimensions in millimetres).
• Dimensions & tolerancing: All dimensions/tolerances given in mm; general tolerancing follows ISO 8015 and unspecified tolerances default to class “m” (ISO 2768‑1) and class “H” (ISO 2768‑2).
• Geometrical tolerances: Specific geometric tolerance requirements are defined (see Figure 9) and related to functional features such as connection diameter, functional height and length.
• Designation rules: A formal designation format is required:
  Tool holder ISO 10889-3 - - × × (example: Tool holder ISO 10889-3 - B1 - 60 × 32 × 60). Hardened contact surfaces are indicated by suffix “H”.
• Technical delivery conditions: Includes requirements for coolant outlet (adjustable direction), tool clamping elements (scope of delivery), possibility to supply hardened contact surfaces, and allowance to reduce nominal height to the next smaller standardized dimension (Table 2).
• Surface and functional notes: Surface roughness callouts (e.g., Rz16) and angular/chamfer details (15° features) are shown in the figures.
• Data exchange mapping: Annex A provides mapping between ISO 10889-3 symbols and ISO 13399 property names/codes for digital tool data interoperability.

Applications

• Who uses it: Tool-holder manufacturers, machine tool builders, CNC turning shops, procurement/specification engineers, quality/control inspectors, and CAD/CAM data managers.
• Practical use cases:
  • Designing and manufacturing standardized Type B tool holders for turning operations.
  • Specifying product geometry and acceptance criteria for procurement contracts.
  • Ensuring interoperability of tooling data with ISO 13399-compliant systems.
  • Applying the standard’s recommendations to non-standard or special-design rectangular radial seat holders to maintain compatibility.

Related Standards

• ISO 10889-1 (Cylindrical shank, location bore - technical delivery conditions)
• ISO 2768-1 / ISO 2768-2 (General tolerances)
• ISO 8015 (GPS fundamentals - rules)
• ISO 13399 (Cutting tool data representation and exchange)

Keywords: ISO 10889-3:2016, tool holders, cylindrical shank, rectangular radial seat, Type B, dimensions, designation, technical delivery conditions, turning machines, ISO 13399.