Quote:
Originally Posted by HaroldD
I'd guess 7 or 8 degrees.
Measure the large hole, small hole, and depth with a micrometer. Break out the geometry book.
Here's my best shot without any ritas onboard. Each side is a right triangle. I visualize the edge of the large hole end as the tip of the triangle, draw an imaginary line through the spindle metal toward the small hole end, then the length of your right angle end of the triangle is 1/2 of the difference between the two diameters.
tan (A) = 1/2(LS)/T
where A is your angle, L is large diameter hole, S is small diameter hole, and T is thickness.

Or a very accurate formualted mathmatical equation,lol. Thanks Harold