Product Description from Store[LIST][*][Package Include]:3" And 6" Drive Impact Extension Bar, 3/8" Universal Joint, 1/2" To 3/8" Reducer And The Following Socket Sizes: Sae, Deep: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 (Inches), Shallow: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 (Inches) ,Metric Sizes: Deep: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,21,22Mm, Shallow: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,21,22Mm