Tekton 3/8 Inch Drive Impact Socket Set, 57-Piece SID91121

Includes 19-pc. 3/8 in. drive 6-point shallow impact sockets: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 mm; 19-pc. 3/8 in. drive 6-point semi-deep impact sockets: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 mm; 19-pc. 3/8 in. drive 6-point deep impact sockets: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 mm; 3-pc. 18 inch socket rails; 18 inch socket rail tray, Two Size Markings - The size is marked in two ways on every socket-both as a high-visibility laser marking and a permanent stamped marking, Full-Length Socket Well - The interior well extends fully into the socket, which allows for better fastener engagement in more situations, Works with Friction Ring or Detent Pin Anvils - Smooth walls inside the drive end and a detent pin hole make the sockets compatible with both drive tool anvil types, Prevents Fastener Round-Off - Radiused corners prevent fastener round-off by applying force to a fastener's flat sides, rather than its corners, High-Performing Steel Alloys - This socket is made from 50BV30 Chromium-Vanadium (Cr-V) and has a corrosion-resistant manganese phosphate coating