Lithium Batteries Include The Best
This one more powerful than you'd think-it's more than adequate to get the job done for any relatively small project. It's definitely not enough for building a deck or something like that--but for most things it works fine.There are 3 speed settings you can choose from as well: 0-300 RPM on low, 0-600 at the mid level, and 0-1,700 RPM in high gear.