IRC3902 Features: * 40 ft-lbs max reverse torque * 2200 RPM, 2500 BPM * Reverse bias torque to prevent stripping small or plastic fasteners Specifications: * Less than 2.7 lbs with Lithium Ion battery (battery sold separately) * 7.2V 1/4"" Square Drive Cordless Impactool Assembly Instructions: * All metal hammercase and housing ring for ultimate durabilityThe IRTW040SQ is light weight and compact for easy access in confined spaces. Patent-pending IQv technology provides maximum performance, durability, and battery life. The 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. Warranty: * 1 yr warranty on material and workmanship