1. Geometry of the Active Part of Cutting Tools — General Terms, Reference Systems, Tool and Working Angles;International Organization for Standardization ISO 3002/1,1977
2. Specification of the cutting geometry of single point tools and twist drills using the ISO system
3. A general method for tool angle transformations, advances in machine tool design and research;Peters,1970
4. A. R. Watson, Private communication to SAA.
5. A. R. Watson, Private communication to SAA.