Hex Size: 9/16"Overall Length: 8-1/2"Shaft Length: 4"Material: Alloy Steel Shaft With Plastic HandleUsed To Tighten Or Loosen Hex Shaped Bolts And NutsHollow Shank Allows Bolt To Insert Into Shaft While Tightening A NutPrecision Machined Case-Hardened SocketChrome Plated Shaft Helps Prevent CorrosionErgonomic Hex Shaped Handle Aids In Gripping Power And Provides Superior Comfort