Constructed from high-strength Chrome-Vanadium Steel, with a protective black phosphate coating.
Set Includes: 3" and 6" drive impact extension bar; 3/8" universal joint; 1/2" to 3/8" reducer; 3/8"Dr. deep/shallow (SAE): 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"; 3/8"Dr. deep/shallow (Metric): 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22mm
6-point design keeps a tight grip and prevents rounding off corners. Spring loaded detent ball and the through-hole in the drive end ensure sockets or extension bars from dropping.
Laser-etched with high contrast and specific size marking for identification. It helps you select the size easier.
It comes with a sturdy and convenient storage case. Keep each piece in the proper position. Meets or exceeds ANSI performance standards.