Timber Tuff gives you the ideal way to sharpen your chain saw chains with the CS-BMM316 3/16” Grinding Wheel. This grinding wheel replaces the wheel in your Timber Tuff CS-BMM and CS-MBCJR to keep your chains sharp and accurate. This grinding wheel measures 3/16” thick and is 4” in diameter with an arbor hole of 7/8”. Constructed of high-quality aluminum oxide, this grinding wheel allows for quick and easy sharpening of your chain saw chains. Timber Tuff’s grinding wheels are pre-shaped for easy use and for a perfect fit right out of the box, saving you time and hassle. The long-lasting and heavy-duty wheels are designed to give you an excellent cutting edge for your chains to help keep your chains performing well. The CS-BMM316 Grinding Wheels are perfect for professional and personal use and are the reliable choice in grinding wheels.