Since the introduction of the conventional twist drills about 100 years ago, various drill point geometries, such as the double conic drill, split point drill, racon drill, and helical drills, have been introduced to improve drill performance. Around 1953, a new drill point geometry appeared in Beijing, China, which, in this chapter, is called the Multifacet Drill (MFD). In the subsequent 20 years, more than 20 new types of MFDs have been developed dealing with various workpiece materials and drilling conditions.


Cutting Edge Thrust Force Rake Angle Point Angle Drilling Condition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Chapman and Hall 1985

Authors and Affiliations

  • S. M. Wu
    • 1
  1. 1.University of WisconsinMadisonUSA

Personalised recommendations