With 12 heat-treated alloy steel keys ranging from.050" (0.1 cm) to 5/16" (7.9 mm), this hex key set provides a complete range of sizes for mechanical and industrial fastening. The set includes.050" (0.1 cm), 1/16" (1.6 mm), 5/64" (2 mm), 3/32" (2.4 mm), 7/64" (2.8 mm), 1/8" (3.2 mm), 9/64" (3.6 mm), 5/32" (4 mm), 3/16" (4.8 mm), 7/32" (5.6 mm), ¼" (6.4 mm), and 5/16" (7.9 mm) keys organized within a storage case. Each component is constructed from alloy steel to maintain structural integrity during use.

With 12 heat-treated alloy steel keys ranging from.050" (0.1 cm) to 5/16" (7.9 mm), this hex key set provides a complete range of sizes for mechanical and industrial fastening. The set includes.050" (0.1 cm), 1/16" (1.6 mm), 5/64" (2 mm), 3/32" (2.4 mm), 7/64" (2.8 mm), 1/8" (3.2 mm), 9/64" (3.6 mm), 5/32" (4 mm), 3/16" (4.8 mm), 7/32" (5.6 mm), ¼" (6.4 mm), and 5/16" (7.9 mm) keys organized within a storage case. Each component is constructed from alloy steel to maintain structural integrity during use.