Draper Imperial Hex & Ball End Hex Key Set (12Pc) - HB12AFHexagon 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 then applied with a chemically blacked finish. Supplied in fold out easy release holder which can be wall mounted. 1 16, 5 64, 7 64, 9 64, 5 32, 1 8, 5 32, 3 16, 7 32, 1 4, 5 16 and 3 8" Key Features