Drop Forged Carbon Steel Construction. Heat Treated and Chrome Plated 15-Degree Offset for Easy Access. Ideal for Gas, Brake, and Air Conditioning Lines. Wrench Sizes: 1/4" x 5/16", 3/8" x 7/16", 1/2" x 9/16", 5/8" x 11/16", 3/4" x 13/16", 7/8" x 1