Here is a question that has troubled me over the years.
What is the advantage to hole production when using a step drill over a single diameter tool?
I have many (not hundreds, but close) step drills from size #10 to 3/8" from my aviation days. They do make nice holes.
Much like a drill ream "dreamer" combination.
Why is that grind not a standard item?
What is the advantage to hole production when using a step drill over a single diameter tool?
I have many (not hundreds, but close) step drills from size #10 to 3/8" from my aviation days. They do make nice holes.
Much like a drill ream "dreamer" combination.
Why is that grind not a standard item?