abn manual impact driver set - 3/8in reversible hand held impact screwdriver and impact screwdriver bits abn use the abn 3/8-inch manual hand impact driver set features dual-action use for embedding and removing fasteners on various projects. corrosion-resistant chrome-plated finish ensures durability, while the ergonomic knurled handle provides a non-slip grip. handheld impact screwdriver manual impact driver kit is designed to be easy to use by including directional markings on the front end of the handle. use the 1.6 lb. (.7 kg) screw driver punch tool with your existing hammer to create a high torque impact force to tighten nuts, bolts, and screws and to remove rusted, frozen, and stubborn fasteners with ease. always remove any dirt buildup from the screw to prevent damage to the screw head and use protective gear to prevent injury. warning: this product can expose you to chemicals which is [are] known to the state of california to cause cancer and birth defects or other reproductive harm.