Hex Key Boxed Sets Two L-shaped hexagon key sets supplied in a storage box Keys manufactured from 8650 chrome nickel alloy steel ANSI B18·3 & US FED SPEC GGG-K-275D standards Key Sizes • 0.028 in • 0.035 in • 0.05 in • 1/16 in • 1/2 in • 1/4 in • 1/8 in • 3/16 in • 3/32 in • 3/8 in • 5/16 in • 5/32 in • 5/64 in • 5/8 in • 7/32 in • 7/64 in • 9/16 in • 9/64 in Features and Benefits • 18x allen keys included • Tools conveniently stored in a compact and robust metal storage box • Imperial sizes for every-day applications • Keys manufactured from 8650 chrome nickel alloy steel • ANSI B18·3 & US FED SPEC GGG-K-275D standards