The Power Blade Nut Setters have a solid shaft to provide strength and durability for long-lasting repetitive use and are impact-rated for use in power tools. Wiha Nut Setters have a standard 1/4-inch hex drive and a 3.9-inch overall length, making it easy to work in limited access environments. The set includes SAE sizes: (3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2 Inch) for a wide variety of applications. Consisting of premium quality CrMo tool steel, the nut setters are precision-formed for exact-fit, and have a durable finish for corrosion protection. The socket openings feature a beveled rim for easy fastener engagement with a broached and smooth finish for prolonged life. Set Includes: 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2" Wiha premium quality tool steel for strength and durability Sizes laser engraved for clear identification Cold forged from Chromium-molybdenum alloy steel (CrMo) for strength and durability Exact-fit precision-machined tips for reduced cam-out 3.9-inch (100mm) overall length Standard 1/4-inch hex drive for universal application Broached and clear-coated openings for added corrosion protection