Product Information AC2- 555. Kobalt 227-Piece Standard (SAE) and Metric Combination Polished Chrome. Mechanics Tool Set (1/4-in; 3/8-in). You spoke and we listened! The 227-piece blow-molded case has been restructured and enhanced. Reinforced joints will help the case withstand the rigors of day to day use. Larger drawer detents have been added for smoother open […]