TEKTON 3/8 Inch Drive 6-Point Universal Joint Impact Socket Set with Rails and Tray, 15-Piece (1/4-1 in.) | SID97101

30-Degree Working Angle - The joint rotates smoothly and continuously at up to a 30-degree angle 6-Sided Pinless Joint - Our solid ball-and-socket style joint is stronger than joints that use pins, and the 6-sided ball operates more smoothly than 4-lug designs Two Size Markings - The size is marked with a high-visibility laser marking and a permanent stamped marking 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 Socket Organization Rails - The twist-to-lock clips on the rails hold sockets securely and can be repositioned anywhere along the rails