Compact and durable, the Hex Key Set, Short Arm, 0.05"–3/8", 13-Pc, provides precise fastening and adjustment for a wide range of mechanical and assembly applications. Each key is crafted from hardened steel for superior strength, wear resistance, and long-lasting performance under high torque. The short arm design offers excellent control and accessibility in confined spaces, while chamfered ends ensure a smooth, accurate fit that prevents fastener damage. Organized in a convenient holder for easy identification and portability, this set is ideal for marine maintenance, industrial repair, and metric fabrication tasks requiring reliability and precision.