The Kincrome K28066 socket set is perfect for any professional application, complete with a 1/4” and 3/8”" ratchet with assorted metric and imperial sockets. Manufactured from chrome vanadium steel, these sockets have been hardened, tempered, chrome plated, and polished for corrosion protection. All protected by a sturdy machined tin. Contents:9 x 1/4" Drive Metric Sockets: 5, 6, 7, 8, 9, 10, 11, 12, 13mm9 x 1/4" Drive Imperial Sockets: 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2"9 x 3/8" Drive Metric Sockets: 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm9 x 3/8" Drive Imperial Sockets: 5/16, 1/4, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4"1 x 3/8" Drive Reversible Ratchet1 x 3/8" 75mm Extension Bar1 x 3/8" F x 1/4" M Adaptor1 x 1/4" Spinner Handle1 x 1/4" x 1/4" Coupler Holder2 x 9 Piece Screwdriver Bit Set (TPT/HEX, PHI/SLT) | Kincrome 1/4" & 3/8" Drive Metric and Imperial Socket Set - 61 Piece