Adjustable Fasteners: This folding Allen wrench set provides a perfect fit for bolt and fastener heads; Allen keys can be adjusted for a more customized feel Convenient Features: Allen wrench key set includes clearly labeled wrench sizes and a color coded body; Quickly select the right SAE, metric, or star hex key with this hex wrench set Durable Construction: Foldable Allen key set is made of drop forged heat treated steel for strength and durability; Allen wrench hex keys resist rust and corrosion Comfortable to Use: These hex key sets feature an ergonomic grip for steady and comfortable use; Hex set tools provide maximum comfort while completing repairs or maintenance work Included Sizes: Metric: 1.5, 2, 2.5, 3, 4, 5, 6, 8 millimeter; SAE: 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4 inch; Star: T9, T10, T15, T20, T25, T27, T30, T40