Milwaukee M18 FUEL 3/8” Compact Impact Wrench w/ Friction Ring delivers up to 210 ft-lbs of torque in a compact design. The POWERSTATE Brushless Motor provides power, while also providing greater efficiency and cooling. REDLINK PLUS Intelligence helps prevent damage to the tool and battery from overloading or overheating. REDLITHIUM Batteries (not included) deliver more work per charge and more work over the life of the pack than competitive batteries on the market. The 4-Mode DRIVE CONTROL provides greater control over output speed and power for greater versatility by delivering 0-900 RPM in Mode 1, 0-1600 RPM in Mode 2, and 0-2500 RPM in Mode 3. Auto Shut-Off Mode intelligently detects when the tool has impacted on a fastener for one second and automatically shuts the tool down, reducing the likelihood of overdriving and damaging materials.