SK 1709 Professional 9 Piece 6 Point and 12 Point 1/4-Inch to 3/4-Inch Fractional Combination Wrench Set

Features and Benefits: SureGrip hex design drives the side of the fastener, not the corner Open end is angled 15 degrees for greater access Box end design features a 15 degrees offset head for clearance Made in the U.S.A. Lifetime warranty 9 piece set is made in the U.S.A., featuring SK\'s SureGrip wrenching design on wrench box ends, which drives the side of the hex fo the fastener, not the corner, to increase torque and avoid edge breakage, especially on rusted or damaged fasteners. Set includes 6 point wrench sizes: 1/4\", 5/16\", 3/8\", 7/16\" and 12 point wrench sizes: 1/2\", 9/16\", 5/8\", 11/16\", 3/4\". (Amazon)