1. “Investigations into the clearance geometry of end mills”;Kaldor;Annals of the CIRP,1984
2. ISO 3002/1 “Geometry of the active part of cutting tools - Part I : General terms, reference systems, tool and working angles”, 1977
3. “Technical Guide End Milling”;Osg,1982
4. “Drill Point Geometry and Optimisation”;Kaldor;Trans. of the ASME. Eng. for Industry,1982