I noticed that on larger twist drills, I don't see the web thinned notch.
Would there be problem if the web was thinned on a larger drill bit, say over 1/2"?
Is there a reason that you don't see web thinning on larger drills over 1/2"?
Does the included angle of the drill play a part, i.e. 118° Vs. 140° in web thinning?
I see better results in 3 faceted drills with a web thinned notch.
Thanks
Would there be problem if the web was thinned on a larger drill bit, say over 1/2"?
Is there a reason that you don't see web thinning on larger drills over 1/2"?
Does the included angle of the drill play a part, i.e. 118° Vs. 140° in web thinning?
I see better results in 3 faceted drills with a web thinned notch.
Thanks