9-piece SAE allen key set available in sizes 1/16, 5/64, 3/32, 1/8, 5/32, 3/16, 1/4, 5/16, 3/8 Inch for for easy removal or installation. Comes in a foldable hanging storage holder for space-saving and portability S2 steel heat-treated for maximum strength and toughness, resistance to rotational impact and wear. Enough strength to withstand pressure without deformation for long-lasting service. The high-polish finish also lets you easily wipe away gunk and grease Hex keys are stamped with clear markings for easy selection and identification, ensuring you can quickly find the right size for your needs. Please note that the sizes 1/16 ″, 5/64 ″, 3/32 ″ are too small to stamp marks The ball end design of the hex key set enhances reach and allows access at a 25-degree angle, providing flexibility in tight spaces while reducing lateral pressure on nuts and parts to protect threads and fasteners L-shaped long side design provides extended reach and enhanced leverage and torque, make you more labor-saving. Chamfered hex tip ensures precise fastener engagement, reduces the wear of the hex wrenches and fastener head SK 9-Piece Allen Wrench Set, Folding Hex Key Set, SAE Ball End Hex L-Key, S2 Steel