POWER: The brushless motor and impact mechanism are finely tuned to unleash a high power-to-weight ratio, with 550 ft.-lbs. of nut busting torque and 365 ft.-lbs. of MAX torque at 5.3 lbs (with BL2022 battery).. The all-metal drivetrain and hammer mechanism are designed to provide technicians the power they need without adding extra weight to the tool. CONTROL: With 4 power modes, you can adjust a dial instead of changing tools to deliver the right amount of torque when you need it and eliminate rework. From brake calipers to valve covers and everything in between, there�s no need to switch tools. The variable-speed switch with electronic brake provides MAX control of the tool. DURABLE: Protected by a chemical-resistant composite housing and a patented steel-reinforced frame, the W5133 is built to withstand repeated drops onto concrete and exposure to shop fluids. The IQv spark-free brushless technology and reinforced bushing provide a longer-life motor you can rely on. ACCESS: Thanks to its compact ergonomic design and lightweight build, the W5133 can easily access tight spaces, giving you access no matter where your work may be hiding. A built-in 360 degree COB LED light casts a wide beam to give you excellent visibility with no shadows.