Motion Pro Gear Jammers

No more broken gear teeth--Motion Pro Gear Jammers give you more surface area in contact with your gears. Motion Pro has developed a simple but clever tool to prevent your gears from rotating while performing engine work. They allow you to tighten locknuts to the proper torque setting, have a powerful magnet that holds the tools in place, and work on virtually any motor. They offer blue anodized billet construction and easily fit in your toolbox.