The Siegen 15 Piece 1/2" Drive Impact Driver Set is a comprehensive manual impact driver solution designed for removing stubborn or seized fasteners. This hand impact driver delivers hammer-action force to break free corroded screws and bolts that conventional screwdrivers cannot shift, making it an essential tool for automotive work, machinery maintenance and general mechanical repairs. The impact driver features a chrome-plated body with a twist-reverse function, allowing you to switch between loosening and tightening operations quickly. Heavy knurling on the body provides enhanced grip during use, ensuring control even when working with gloves or in oily conditions. The 1/2" square drive accepts the included Chrome Vanadium steel bits, offering excellent durability and resistance to wear. This 15-piece set includes a comprehensive selection of bits to tackle various fastener types: five slotted bits (5, 6, 8, 10, 12mm), four Phillips bits (#1, #2, #3, #4), and four hex bits (4, 5, 6