universal machine technology interface
The Cutting Tool Definition (CTD) is an open, internationally coordinated standard for the structured and machine-readable description of cutting tool geometries. It enables consistent definition of geometry elements and measurements across manufacturers and systems, forming a universal language for tool data in digital manufacturing.
CTD complements the OPC UA Companion Specification OPC 40504 UA for Cutting Tools, providing a reliable data foundation for CAD/CAM systems, quality assurance, machine controls, and measurement technologies. The standard is publicly accessible and designed for broad industry adoption.
Defined in VDMA 34189:
- Basic concepts and general definitions
- Geometry definitions for round tools
- Specifications for milling cutters, drills, and reamers
- In progress: definitions for grinding wheels and wheel packs
Developed by an international working group including:
- Machine tool builders
- Measuring machine manufacturers
- Software vendors (CAD/CAM/QA)
- Cutting tool manufacturers and end users
Benefits for Industry:
- Unified data structure across the entire process chain
- Seamless integration into existing software environments
- Enhanced transparency and efficiency in tool management
- Future-proof foundation for AI-driven applications and smart manufacturing
Experience it live at EMO Hannover 2025:
Learn how CTD contributes to the future of tool data communication, as an open and interoperable standard designed to support real-world production environments.