Draper expert 9 piece metric hexagon ball end hexagon key set draper expert 73042 b i expert quality i b 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 15 176 angle from the screwhead recess chrome vanadium steel hardened and tempered held in plastic storage holder with special handle that allows the key to be held in three different positions display packed draper expert 73042 9 pi