Hex Key Set Ball End Hex Key Set Shape T Measurement Type SAE Arm Length 3.38 in to 5.00 In. Blade Material Chrome Vanadium Steel Finish Black Oxide Standard Tool (Accessory Needed for Tethering) Nonsparking No Insulated / Uninsulated Uninsulated Handle Type Ergonomic Arm Type Long Number of Pieces 10 Sizes Included 3/32 In. 7/64 In. 1/8 In. 9/64 In. 5/32 In. 3/16 In. 7/32 In. 1/4 In. 5/16 In. 3/8 In. Handle Material Rubber Meets/Exceeds ASME/ANSI Standards