The ball end design allows up to a 25-degree entry angle for easy reach over and around obstructions.
For fast and sure identification of each series, inch sizes come in a gray housing and metric sizes come in a red housing.
13-pc. long arm ball end inch hex key wrenches: 3/64, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8 in.