These pound thru screwdrivers are designed to withstand being hit with a hammer. They are ideal for fastening chiselling and loosening seized screws. There is an integrated shock absorbing impact cap for striking with a hammer. The hexagon blade extends through the handle for maximum strength. The blade is made from hardened chrome vanadium steel which is chrome plated for corrosion protection. The blade tip is magnetic to hold the screw in place making it easier to deliver more accurate force and precise fastening and loosening. The tip also has a black phosphate coating for added durability. They are fitted with an ergonomic soft grip comfort handle with drive type colour identification. The handle shape helps ensure the screwdriver does not roll off flat surfaces.