John C.
Senior Member
One thing I've wondered about the sparky impacts was the weight of the batteries and the things being out of balance. I wonder about their resistance to weather and all the oil and grease I've been in over the years. I've got a Craftsman 20 volt I use for sheet metal but when it comes to diving into the center of a big wheel loader or stripping out valve sections on an excavator I always go back to the air tools.