Hex Key Set, Measurement Type: Metric, Handle Type: T-Shaped Ergonomic, Arm Type: Long, Blade Material: Alloy Steel, Finish: Black Oxide, Number of Pieces: 6, Arm Length: 6.00", Sizes Included: 2, 2.5, 3, 4, 5, 6mm, Tether Capable: Standard Tool (Accessory Needed for Tethering), Handle Material: Rubber, Meets/Exceeds: ANSI B18.3, Federal Specification GGG-K-275D, Includes: Pouch