Rated 5 de
Power, longetivity and AWSOMEI have the 2 piece kit including the impact driver but I mostly use this tool. I must say it is amazing. Doing electrical work involves driving lots of 3 inch wood screws to #10 screws and this does it all even drilling holes with a paddle bit. I keep it to the limit of 5/8. I bought it used from a co-worker and it was about 1 year old and I've had it for 5 months now.