I'd like to drill an approx. .040" hole, about 1/4" deep, in a 7/16" sphere made of either tungsten carbide or silicon nitride.
The hole needs to be pretty straight and have smooth walls.
I probably only need to drill one, or maybe two.
How do I do this? Thanx. guys.
The hole needs to be pretty straight and have smooth walls.
I probably only need to drill one, or maybe two.
How do I do this? Thanx. guys.
