• Best For: Shops that want a larger 6-inch coarse cup wheel from the MK-404 PW line instead of the 4-inch size.
• Highlight: A 6-inch diameter in coarse grit with a 5/8-11 nut; the 4-inch coarse equivalent is 159313.
• Expert Note: The 6-inch diameter covers more area per pass than the 4-inch coarse 159313, and both use the 5/8-11 nut.
