Features and Benefits:

• Improved black coating retains more rust preventative compound than black oxide
• Neck-down design provides improved access over tapered design
• SureGrip® hex design drivs the side of the fastener, not the corner
• Made in the U.S.A.
• Lifetime warranty

21 piece set is made in the U.S.A., featuring an improved black coating retaining more rust preventative compound than black oxide. All the SK impact sockets feature SK's SureGrip® hex design, which drives the side of the hex, not the corner. This not only provides increased strength, but also avoids the rounding of rusted or damaged fasteners, which can occur when using a sharp cornered hex tool. Set includes: 1" drive impact sockets: 3/4", 13/16", 7/8", 15/16", 1", 1-1/16", 1-1/8", 1-3/16", 1-1/4", 1-5/16", 1-3/8", 1-7/16", 1-1/2", 1-9/16", 1-5/8", 1-11/16", 1-3/4", 1-13/16", 1-7/8", 1-15/16" and 2".