IRTW150-KL2 Features: -150 ft-lbs max reverse torque.-0-2200 RPM, 0-3000 IPM. Includes: -All metal hammer case and housing ring for added durabilityThe W150 is the most powerful and durable cordless impact in its class. Patent-pending IQV™ technology provides maximum performance, durability, and battery life. Compatible with both Lithium-Ion and Nickel Cadmium 14.4V IQV batteries. The W150 is ideal for general automotive and service work such as suspensions, front-ends, brakes, engines, and autobody jobs. Included in a hard carrying case, along with (2) 14.4-volt Li-Ion batteries and BC10 universal battery charger. . Construction: -Engineered composite housing with patent pending metal subframe for unbreakable strength. Specifications: -Less than 4.7 lbs with lithium ion battery.-W150-KL2 3/8"" Square Drive 14.4 Volt Impactool. Warranty: -3 yr warranty on material and workmanship.