1. Chisel-Edge Modification of Small HSS and Carbide Drills for Improved Machinability;Bhattacharyya;CIRP Annals,1981
2. Torque, Thrust and Power for Drilling;Boston;Journal SAE,1931
3. Burant, R. O. and McGinty, M. J., 1979, “Cutting Tools/Drills”, Parts 1-10, Manufacturing Engineering.
4. DeVries, M. F. and Levy, B., 1976, “Use of Drill Forces as a Measure of Machinability”, SME, Paper MR76-340.
5. The Spiral Point Drill- A New Concept In Drill Point Geometry;Ernst;Trans, of ASME,1958