I wet through the trouble to draw the tool.
Length of taper on mine is 1"
So - I drew a 1/8 ball and a 1/4 shank
I laid out the 1" taper length
I drew a line tangent to ball and to intersection of cut depth.
I drew a line for the center line of the cutter - then trimmed the ball
I trimmed all un-needed lines.
That's the HARD way.
At the time I did that - I was not aware of the easy way.
The easy way is the use the tapered ball nose mill tool in the database.
The angle should be available from the manufacturer.