The Olsa Tools Metric and SAE 100-Tooth Combination Ratcheting Wrench Set skips no sizes and saves users time by giving them the ability to reach into tight spaces with the help of a 3.6-degree swing arc. The polished chrome vanadium steel provides durability, and the patented box end design bites into up to 80 percent of rounded bolts, providing extra grip to avoid slippage. A storage tray is included, and the set is backed by a standard, limited lifetime warranty and a 100 percent satisfaction guarantee.