Klein Tools 76206 4-Inch Blade Length by 3/32-Inch Hex T-Handle Hex-Key Overall length: 6-Inch, blade length: 4-Foot T-Handle design delivers more torque to the fasteners Color-coded handles: blue for metric, black for inch Hex size: 3/32-Inch Klein offers a lifetime warranty on material defects and workmanship for the normal life of the product.