Review on Greenlee DTAP10 32 Combination Drill 10 32NF by Terrance Castle

You need to make sure that the friction clutch is installed somewhere in the lower half, otherwise the drill is easy to break. The screws wobble even when drilling at right angles in the hole. I've used up to 1/4 aluminum and 1/8 stainless steel. It dulls easily when used in lots of stainless steel, but doesn't dull at all in aluminum. I always use some kind of lube/liquid for tapping. Great time saver and great quality.