3.5 Overview of the 147 Basic Countersinks, Chamfering, and Radiusing Cutter Designs

Fig. 3-6 illustrates one of the very early countersinks. As a predecessor to modern tools neither it nor other of that era are discussed in this chapter. Many of these early designs are shown in Chapter 1 and more can be found in patent office records as listed in Appendix A1. A few of the modern tools described in the current chapter are no longer made, but are still viable designs for today's technology. Because there are so many different designs readers may find Appendix C and Table 6-1 to be useful quick finding aids. Appendix C presents a series of thumbnail images of each of the tools described in this chapter to help one determine the style visually.

Fig. 3-6: Out of date tools such as this countersink are not included in any discussions beyond Chapter 1

The discussions in this chapter are in numerical order by tool style number. While some applications data are provided in this chapter the principal applications for these tools are identified in Chapter 6. Users should refer to both Table 6-1 and the detailed discussions in the remainder of this chapter to make the best selection. Actually the most appropriate selections should be made after reading all the chapters in the book, since each presents a different aspect of tool application, economics, or use. Manufacturers and some tool distributors can provide additional details and experiences to help the user. At least...