Shown is the TourLock Rotary File. This tool is used to clean burs out of the golf club shaft which is sometimes necessary when installing or adjusting the Opti-Vibe weights. The grip end of a golf club shaft is not always smooth enough to allow for an easy insertion of the Opti-Vibe weight and this is just the right tool for the clean up job. It fits in your drill which is used to spin the tool and clean up any jagged or sharp edges.
You may also be interested in visiting our installation page for guidance on choosing and installing your weights.