About this item 【Quality Material】 Constructed from high-strength chrome vanadium steel for durability and corrosion resistance, this set withstands heavy-duty torque in automotive repairs, industrial maintenance, and DIY projects. 【Tight-Space Access】Features a 72-tooth mechanism for a 5° swing arc, reaching nuts behind engines or in cramped corners. 【SAE & Metric Dual Sizes】 This 20-Piece Set Includes metric (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 mm) and SAE (5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4") sizes, covering common automotive, home repair, and mechanical tasks with comprehensive size coverage. 【12-Point Design】12-point box ends ensure secure grip, minimizing slippage and fitting 4, 6, 12 pt, spline, external torx, and rounded fasteners efficiently. 【Storage Case & 1-Year Warranty】 Includes a durable organizer case for easy storage and comes with 1 year quality warranty. Overview Color: Black Brand: CaeeKee Material: Chrome Vanadium Steel Item Weight: 3620 Grams Head Style: Open End