Brown and Sharpe No. 9 Compared to R8

[David2011]

For the curious as I was, here's a graphic that I created to compare the B&S #9 to the R8 taper. The blue areas are unique to the R8. The green areas are common to both and the yellow areas are unique to the B&S #9.

 

[markba633csi]

It would be interesting to compare the grip force with the retention force

 

[David2011]

Seat-of-the-pants says the B&S would win due to the long shallow taper. The R8 taper is only 15/16“ long and so much steeper.