YoYoFactory YoyofactoryYA-021 Multi-Tool One side of the MultiTool offers a high-strength bearing removal tool, intended to remove even the toughest large bearings from your Yo-Yos On the opposite side of the MultiTool is a string cutter, which enables you to adjust and cut your string length with ease. Protruding from the bottom of the Multitool is a hex key that adjusts the Loop1080 string gap