Our Ratchet and Socket Set features sockets that have FOUR FLAT� Sides that deter rolling and are wrench compatible for maximum productivity. The 90-tooth ratchet tool that provides 4� of arc swing and a slim profile for work in tighter spaces. We�ve stamped the sizes into each socket for easy-to-read visibility. You can keep both the SAE & Metric 56-piece ?� and 50-piece �� Drive Ratchet and Socket Sets organized in the included PACKOUT� Low-Profile Organizer equipped with a clear top for easy identification of parts at a glance. This PACKOUT� Organizer is IP65 rated and built from impact-resistant materials for durability on and off the jobsite with a reinforced hinge and heavy-duty latches. The Low-Profile Organizer is part of the MILWAUKEE� PACKOUT� Modular Storage System, allowing you to custom build storage systems to easily transport and organize your tools and accessories. This Combo Kit includes a 106 total pieces: a 56 Piece 3/8 in. Drive Ratchet and Socket Set (48-22-9008), a 50 Piece 1/4 in. Drive Ratchet and Socket Set (48-22-9004), and a PACKOUT� Low-Profile Organizer (48-22-8436).