7/8-Inch arbor</br>Designed for clean cuts in most tile materials</br>Tensioned steel core for stability</br>Consistent diamond content and even distribution</br></br>Product Description</br></br>Quality industrial grade diamonds and easy-to-use color coding system. Applications include cutting ceramic slate. For use in small angle grinder.</br><br/>http://www.amazon.com/gp/product/B00EMFOCKI