In this paper, a Drill Point Simulation System (DPSS) which is being developed at
Northeastern University is presented. By means of DPSS, the geometric models of the helical drill
points were shown after inputting their design parameters. Then, the grinding parameters of the
helical drill points were produced. According to the grinding parameters, the helical drill points were
ground by the SD helical drill point grinder which was developed at Northeastern University.
Furthermore, drilling tests were performed on aluminum sheet workpieces to investigate drilling
performance of the helical drill points. In addition, the relationships between the geometric
parameters of helical drill points and their grinding parameters also were derived.