PREMIUM QUALIT - 13-piece triple square spline bit socket set, including a wide range of M4-M8 triple squaret bit sockets and 3 pcs adapters, crafted from S2 alloy steel for superior torque and durability, making it a comprehensive mechanic tool set for garage or workshop DURABLE CONSTRUCTION - Triple square bit socket set crafted from high-quality materials with a rust-resistant finish, ensuring long-lasting durability and performance in any environment ORGANIZED STORAGE - Comes with an aluminum storage rail organizer, featuring a magnetic base that securely holds sockets in place, providing quick identification and easy access during work PRECISE FIT - Each spline square socket is precisely machined for a secure and accurate fit, protecting both bits and fasteners from damage, making it ideal for professional mechanics VERSATILE USAGE - This security bit set is perfect for a wide range of applications, including automotive repair, home improvement, and construction, catering to both professionals and DIY enthusiasts Experience exceptional material with our triple square bit socket set. This 13-piece spline square socket set includes 1/4”, 3/8”, and 1/2” drives, covering M4-M18 sizes. Designed for durability with a rust-resistant finish, each socket ensures a precise fit, reducing the risk of damage to fasteners. The included magnetic aluminum storage rail organizer keeps your tools secure and easily accessible, making this mechanic tool set a valuable addition to any garage or workshop.