MORE SIZE COVERAGE - 9-piece allen hex wrench set long-arm hex key set for quickly tightening or loosening fasteners and includes 9 different sizes from large to small: Metric 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10mm. PREMIUM MATERIAL - Allen keys heat treated chrome vanadium steel construction with matte surface boasts rugged strength, rust resistance and maximum durability and stands up to the harshest environments. BALL END DESIGN - This ball end allen wrench set is engineered for versatility. One end features a ball head for 30° angled access to tight spaces, while the other is a standard hex with a chamfered edge for smooth engagement and full, direct torque application. EFFICIENT L-SHAPED DESIGN - Hex wrench set long/short arm design for longer reach in deeper work situations on the long end and strengthened leverage for tighter fasteners in narrower space on the short end. STAY ORGANIZED - Allan wrench sets come in a sturdy hinged case with dedicated slots for secure storage and high-visibility size markings for quick, llaves allen set easy access and organizing; Portable for both home use and outdoor applicationss.