The Teng Ball Point hexagon key set of 7 hex keys are made from chrome vanadium steel for increased strength and durability and are supplied in a plastic holder for convenient storage. Each key has a short arm and a long arm. The short arm allows excellent leverage and torque, whilst the longer arm allows access in more difficult to reach areas.In addition the long arms have a ball point head, which permits turning at up to a 30º angle. This Teng Tools 7-piece set of hex keys comprises the following sizes:1/8in, 5/32in, 3/16in, 7/32in, 1/4in, 5/16in and 3/8in.