The IRC-W040SQ is light weight and compact for easy access in confined spaces, Patent-pending IQv technology provides maximum performance, durability, and battery life, The IRC-W040SQ is compatible with both Lithium-Ion and Nickel Cadmium 7, 2v IQv batteries, Ideal for automotive interior, engine service, autobody service, and non-critical assembly applications, 40 ft, -lbs, max, reverse torque, Less than 2, 7 lbs, with Lithium Ion battery!, 3/8"" Square Drive, 2200 RPM, 2500 BPM, Reverse bias torque to prevent stripping small or plastic fasteners, All metal hammercase and housing ring for ultimate durability, Dimension: 9, 5"" W x 11, 5"" L x 3, 75"" H, SKU: ISN8616