Hexagon keys with ball end on the long arm and conventional ends on short arm. The ball type hexagon tip allows the hexagon key to be used up to 30° ; angle from the screwhead recess. Manufactured from chrome vanadium steel that's hardened and tempered. Held in plastic storage holder. Contents: 10 x Hex keys: 2.0, 2.5, 3.0, 4.0, 5.0, 5.5, 6.0, 7.0, 8.0, 10.0mm