ISO 6262-2:2013

Overview

ISO 6262-2:2013 is an international standard developed by the International Organization for Standardization (ISO) specifying the dimensions of end mills with indexable inserts that feature a Morse taper shank. This part of ISO 6262 focuses explicitly on end mills designed to fit Morse taper shanks in accordance with ISO 296. The standard ensures consistency and compatibility in the manufacturing and use of these cutting tools globally, facilitating interchangeability and quality assurance in industrial machining processes.

The standard replaces and updates the first edition from 1982, incorporating minor revisions to reflect current industrial practices. ISO 6262-2 is part of the broader ISO 6262 series, which covers end mills with indexable inserts, including those with flatted cylindrical shanks (covered in Part 1).

Key Topics

• Scope and Applicability
  ISO 6262-2:2013 defines the specific dimensional requirements for end mills with indexable inserts mounted on Morse taper shanks, adhering to the Morse taper specifications described in ISO 296.

• Dimensional Specifications
  The standard provides detailed dimensional tables and diagrams specifying key parameters such as:

  • Cutting diameter (d)
  • Morse taper shank size and taper number
  • Head length and overall tool length (l)
  • Maximum tolerances for shank and insert placement
  • Cutting edge angle nominal value at 90°, with actual effective angles depending on insert geometry and cutter diameter.

• Relation to Other Standards
  ISO 6262-2 includes an informative annex clarifying the relationship between its designations and those in the ISO 13399 series, which covers cutting tool data representation and exchange. This cross-reference aids in digital integration and tooling data management.

• Manufacturer Discretion on Inserts
  While the standard regulates the shank dimensions and tool body, the form and dimensions of the replaceable indexable inserts are left to the manufacturer’s discretion, allowing flexibility in tool design while maintaining compatibility with Morse taper interfaces.

Applications

ISO 6262-2:2013 is essential for manufacturers, tool designers, and machining operators who require standardized tooling solutions to ensure compatibility and performance. Practical applications include:

• Precision Machining and Milling Operations
  End mills with indexable inserts and Morse taper shanks are widely used in metalworking industries for precise milling, slotting, and contouring on CNC machines and milling centers.

• Tool Interchangeability in Manufacturing
  Standardized dimensions allow end mills to be easily exchanged and replaced without custom adaptations, reducing machine downtime and improving operational efficiency.

• Integration with Machine Tool Spindles
  Morse taper shanks provide a secure, self-holding fit with spindle toolholders in machine tools, ensuring high rigidity and repeatability during cutting processes.

• Data Management and Digital Tooling
  The linkage with ISO 13399 enables improved digital representation and communication of tooling data in manufacturing resource planning (MRP) and computer-aided manufacturing (CAM) systems.

Related Standards

• ISO 296 – Machine tools - Self-holding tapers for tool shanks
  Defines the Morse taper specifications to which the shank dimensions of ISO 6262-2 end mills comply.

• ISO 6262-1 – End mills with indexable inserts - Part 1: End mills with flatted cylindrical shank
  Addresses a different shank design type for end mills with indexable inserts.

• ISO 13399 (All Parts) – Cutting tool data representation and exchange
  Provides a standardized framework for coding and exchanging tooling information, complementing the designations used in ISO 6262-2.

Keywords: ISO 6262-2, end mills, indexable inserts, Morse taper shank, ISO 296, machining tools, cutting tool dimensions, CNC milling, tool standardization, metalworking, ISO 13399, cutting edge angle, tool interoperability, manufacturing standards