43-Piece SHOCKWAVE Impact Duty 3/8 in. Drive SAE and Metric Deep 6 Point Socket Set. Optimized for use with 3/8 drive impact wrenches, drivers, ratchets, and adapters. Stamped and ink filled diameter markings for wear resistance. 6-Point design made with forged impact steel for durability in high torque applications backed by our Lifetime Guarantee. Kit includes 40 Standard and Deep Metric and SAE Sockets and 3 Accessories. The following sizes are included in Standard and Deep: 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, and (1) 3″ Extension, (1) Universal Joint, and (1) 3/8″ Adapter. Impact resistant case with nestability for easy stacking and storage. Dual hole design and groove for easier attachment. Non-slip hex geometry to prevent socket and fastener rounding. Lifetime Guarantee covers impact sockets and extensions only. Laser etched part number Meets ASME Industry Standards.