Worx POWER SHARE 20-Volt Cordless and Brushless Multi-Speed 1/4 in. Hex Impact Driver with Quick Change ChuckBrushless motors are more efficient, more durable, and last longer than motors based on a brush design, so when we made our 3 speed Impact Driver we werent going to settle for anything but a Brushless Motor. It provides an impressive 2000 in. lbs. of torque, yet in a compact and lightweight form factor. So you can take all that power in tighter places than other drills can go. Then we packed its gearing in a solid aluminum housing, which will extend