The 14-pc 12-pt Metric R.B.R.T. Combination Wrench Set, No. SCLM14RBRT12, from Mac Tools, is ideal for tackling both new and damaged fasteners. The wrenches are designed to grip and turn fasteners that are rounded up to 60 percent with their open end, and the 12-point box end adds versatility to the tools. Each wrench features an I-beam design for strength and user comfort and a double offset head for easier use in tight spaces. Each wrench is finished with a polished surface that makes it easy to clean. The set includes sizes 6mm-19mm.