I've told myself many times that I really need a set of these. Thanks for the reminder.

I questioned this when I first read it, but then consulted my copy of Colvin's Machinist Dictionary to review the 15 pages devoted to drills, His definition for "Wood Drill" began: "Drills for boring holes in wood; usually called 'bits'." I am now enlightened, though I wonder what I should call a twist drill that I use for wood.