Set contains 5 adapters sizes 1/4 in.F x 3/8 in.M, 3/8 in.F x 1/4 in.M, 3/8 in.F x 1/2 in.M, 1/2 in.F x 3/8 in.M and 1/2in.Fx 3/4M. 1/4 in., 3/8 in. and 1/2 in. drive universal joints. 3 in. and 6 in. 3/8 in. drive dual-position extensions. Withclip rail storage.* 5-pc. adapter set includes: 1/4 in.F x 3/8 in.M (Item# 558060); 3/8 in.F x 1/4 in.M (Item#558071);3/8in.F x 1/2 in.M (Item# 558072); 1/2 in.F x 3/8 in.M (Item# 558130); 1/2 in.F x 3/4 M (Item# 558131) * 3-pc. universal joint set includes: 1/4 in. (Item# 558057); 3/8 in. (Item# 558070); 1/2 in. (Item# 558129) * 3/8 in. drive 2-pc. dual-position extension set includes: 3 in. (Item# 558067); 6 in. (Item# 558068) * Drop forged, hardened chrome vanadium steel for strength and durability * Nickel-chrome finish for corrosion resistance * Meets or exceeds ANSI and DIN specifications
