Features These L-shaped hex keys have a tip at the end of each arm that can be inserted into the hexagonal-shaped indentation in the bolt or screw and the arm is turned to rotate the fastener. Tip Size / 19 mm Long Arm Length / 6-29/32 inch Short Arm Length / 2-45/64 inch Finish / Black Oxide Length Family / Short End Shape / Hex Number of Tips / 2 Non-Sparking / No Non-Magnetic / No Tether Ready / No Corrosion Resistant / Yes Insulated / No Measurement Type / Metric Material / Alloy Steel Fastener Holding / No Key Shape / L Number of Ball Ends / 0 Driver Material / Alloy Steel Grip Style / Plain Standards / ANSI B18.3M Working Angle / 90 °