Sizes specific: 1/4-Inch Drive Ratchet Handle | 3" 8" drive impact extension bar | 1/4" universal joint | 3/8" to 1/4" reducer the following | SAE Sockets, Deep: 5/32, 3/16, 7/32, 1/4, 9/16, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16 (inches), Shallow: 5/32, 3/16, 7/32, 1/4, 9/16, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16 (inches), Metric Sockets: Deep: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15mm, Shallow: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15mm Exceptional Quality and Durability: This 56-piece 1/4" socket set is crafted from premium chrome vanadium steel, ensuring high strength and remarkable durability. The heat-treated sockets exhibit a hardness of over 60HRC, providing excellent wear resistance and the ability to handle extreme torque variations. A phosphate coating on the surface offers superior corrosion resistance and rust prevention, making this set an ideal choice for both professional mechanics and DIY enthusiasts. Clear and Distinguishable Markings: Each socket is laser-etched with clear markings, allowing for quick identification of sizes even in low-light conditions. This feature saves time and effort, enabling users to easily find the right tool without the hassle of trial and error. 6-Point Design and Retaining Hole: The innovative 6-point design ensures a snug fit between the socket and bolt, minimizing wear and extending the lifespan of both components. Additionally, the detent hole secures the socket connection, preventing any slippage during use, which enhances safety and efficiency. Convenient and Secure Storage: This socket set is packaged in a robust red high-quality plastic case, thoughtfully designed to accommodate various socket sizes. The case features dual locks to prevent accidental opening, ensuring easy storage and reducing the risk of losing any sockets.