On Saturday, March 22, 2014 10:12:41 PM UTC-7, DoN. Nichols wrote:

snip

"Don't bet on *any* common drill bit being that good. If you want precision, drill a little undersized, and then use a reamer to enlarge the hole to the desired diameter."

Bull**** and spoken like the true amateur that Nichols is. Has Nichols ever worked in a professional machine shop?

If you don't have to ream you save time. I'm in the time business. Time is money. If you know what your doing and you know how to properly sharpen drill bits and test them there is no problem holding most drilled holes to a .002 tolerance or better.