Quote Originally Posted by JBrown89 View Post
I need to drill two 7/8" holes through my 1" thick high steer arms. Easiest way to accomplish this using the least amount of bits?
I have done this many times and I think only once with good results. Seems the large bits usually like to jump around instead of just drilling straight down the pilot hole.

Here is my recommendation. Drill a pilot hole, 3/8" or so. Then get a unibit that goes to 7/8". Use this unibit, slowly, with lube, to get the 7/8" hole started. Then switch to a 7/8" bit and finish the hole.

The unibit will start a good hole and the 7/8" bit will follow it through. Otherwise, when just stepping up bit sizes, I find that the large bit doesn't like to just follow the pilot hole. It chatters and you end up with a larger hole than you wanted.