Features: Suitable for use with any socket head cap screw,  countersunk socket screw or bolt including – pressure plug, button head screw cap, flat head screw cap, socket set screw and socket head cap screw Supplied in a folding holder Specifications: Metric or Imperial set: Metric No of pieces: 9 Sizes: 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10mm Shape: L Arm length: Short Hex Key type: Ball End Material: Chrome Vanadium Steel