This past weekend, I sealed my driveway. Anyone who's done this knows that the sealer comes in 5 gallon buckets that need to be stirred. I stir them with a drill and a heavy wire beater.
This go around I decided to use my cordless drills to do the stirring. I know that this is not standard duty for these things, but figured I'd see what each would do. I have a 14.4v DeWalt, a 9.6v Makita,. and a 12v DeWalt right angle drill. The 14.4 and 9.6v drills are approximately the same age, the 12v unit is quite new. All batteries were fresh off their respective chargers.
First up was my trusty 14.4v DeWalt, which is usually my favorite overall, based on the feel of the drill, the location of the reversing switch, and the clutch operation. I went through TWO fully charged XR packs and still had not completely stirred one container of sealer. Next up was the 12v right angle, which didn't do all that much better. Keep in mind that both of these drills were $150+ kits, including two batteries and a charger.
The Makita, which was $79, including two batteries and a charger, stirred TWO containers of sealer on EACH battery!
I'll admit that this was not a scientific test, and only one of each model was used. However, based on the prices of the tools, I am totally blown away by the results of using them in a high-stress operation.
Of course, your mileage will vary...
Barry