This flat wrench is specifically designed for 8-Notch Shimano® Octalink and ISIS Drive® bottom bracket cups. With a 39.8mm inner diameter and 36.8mm tooth diameter, it offers a perfect fit. Built to withstand the tough conditions of professional use, it features a precision laser cut design and an ergonomic cushioned grip for maximum comfort and leverage. Pedro's flat wrenches are made from 4mm thick, heat-treated tool steel, ensuring ultimate strength and long-lasting performance. They are designed to fit components perfectly, protecting them and making installation, removal, and adjustment simple and safe. Backed by Pedro's lifetime warranty.

Using this bottom bracket wrench is easy. First, make sure your bike is stable. Place the wrench over the 8-Notch Shimano or ISIS Drive bottom bracket cup. Hold the cushioned grip firmly and turn the wrench in the appropriate direction to install, remove, or adjust the component. When using, avoid applying excessive force as it might damage the tool or the bike part. After each use, clean the wrench with a dry cloth to remove any dirt or grease. Store it in a dry place to prevent rusting. If you notice any signs of wear or damage, contact Pedro's customer service as it's covered by a lifetime warranty.