Hex Key Set Measurement Type SAE Handle Type Fold-Up Arm Type Long Blade Material Alloy Steel Finish Black Oxide Number of Pieces 9 Arm Length 3.00 In. Sizes Included 5/64 3/32 7/64 1/8 9/64 5/32 3/16 7/32 1/4 In. Standard Tool(Accessory Needed for Tethering) Meets/Exceeds ASME B18.3