DURATECH Universal Combination Spanner Set: Your ultimate 2-piece solution for tackling a vast range of nut and bolt sizes. This multifunctional adjustable wrench set combines total ring spanner versatility with industrial-strength durability. Expertly drop-forged from high-grade carbon steel, each wrench is heat-treated and finished with a corrosion-resistant chrome plating for the hardest continuous use.The set includes two wrenches for comprehensive coverage. The 7" (180mm) spanner effortlessly handles sizes from 3/16" to 5/8" (SAE) and 5mm to 16mm (Metric). The larger 9" (235mm) combination wrench manages bigger fasteners from 11/16" to 1-1/16" (SAE) and 17mm to 27mm (Metric). Its innovative design allows it to work on a multitude of fastener types including 6-point, 12-point, square, E-Torx, triangle, and even rounded-out fasteners.Simply adjust the size via the middle push block; there's no need to constantly change tools. An indispensable aid for professional mechanics, home DIY enthusiasts, and construction workers alike, this is the practical and helpful gift for any toolbox.