Overview
ISO 10889-6:2016 specifies dimensions, designations and complementary technical delivery conditions for tool holders with cylindrical shank having a cylindrical seat (Type E). It covers Types E1 to E4 (mounting system with cylindrical shank per ISO 10889‑1) and is intended for machine tools with non-rotating tools, preferably for turning machines. The part defines standardized geometry, marking rules and delivery requirements to promote interchangeability and reliable performance of tool holders and accessories.
Key topics and technical requirements
- Scope and applicability
- Dimensions and tolerances are given in millimetres and follow ISO tolerancing rules (ISO 8015; unspecified tolerances per ISO 2768‑1/2).
- Applies to tool holders with cylindrical seats (E1–E4); non‑standard holders are advised to follow corresponding specs in this part.
- Type breakdown
- E1: Tool holders for drilling tools with internal coolant; location surfaces and end face shall be hardened (surface hardness ≈ 56 HRC, hardening depth ≥ 0.5 mm).
- E2: Turning tool holders; may include external (closable) coolant and optional adjustable stops.
- E3: Holders using collets per ISO 10897 (nut and collet interfaces defined); nut form D supplied.
- E4: Holders using collets per ISO 15488; nut supplied per that standard.
- Delivery and design conditions
- Set screws are supplied for E1 and E2; E3/E4 are supplied with the appropriate nut but collets are not included.
- Adjustable stops, when provided, must have the cylindrical shank end face sealed to withstand 1 MPa (10 bar); sealing method is at manufacturer’s discretion.
- Hardened taper surfaces required where collets mount (types E3 and E4).
- Designation
- Standardized designation format: reference to ISO 10889‑6, type (E1–E4), and seat/nominal diameters, with optional codes for adjustable stop (A) and hardened contact (H).
- Interoperability
- Annex A maps ISO 10889-6 symbols to ISO 13399 tool data model codes to facilitate digital data exchange.
Applications and users
- Target users: tool designers, toolholder manufacturers, machine tool builders, procurement specialists, quality engineers, and CNC turning shops.
- Practical applications:
- Standardizing tool holder production and purchasing to ensure interchangeability and predictable fits.
- Specifying holders for turning operations with internal/external coolant or collet clamping.
- Ensuring adequate hardness and sealing for heavy-duty and coolant-fed tooling.
- Enabling consistent designation and digital cataloguing via ISO 13399 mapping.
Related standards
Keywords: ISO 10889-6, tool holders with cylindrical shank, type E cylindrical seat, turning machines, collets, technical delivery conditions, toolholder dimensions, ISO 10897, ISO 15488.