4-In. Metal Grinding Wheel
4" x 1/4" x 5/8" Arbor, Metal Grinding Wheel, Double Reinforced With Industrial Grit & Glue For Increased Life & Durability, Superior Friability Allows Wheel To Break Down Quickly Consistently Exposing New Grain For Increased Sharpness & Longer Life, For Low Angle & Vertical Grinding.