Question

you are machinist setting up a part that requires a5/8 inch diameter finished hole.stardart practice is to drill an initial ghole with adiameter that is undersided by 1/32 inch before finishing What should be the diameter inches of the initial hole?

Answer 1

We will have that the initial diameter will be:

$\frac{5}{8}-\frac{1}{32}=\frac{19}{32}=0.59375$

So, the initial diameter has to be 19/32 inches.