• Best For: Floor prep crews with a 5/8-11 threaded grinder who want a 7-inch single-row turbo cup wheel.
• Highlight: Single-row turbo design in the larger 7-inch (178mm) size of the Supreme Grade MK-504CG-1 series.
• Expert Note: This is the 5/8-11 nut version of the 7-inch MK-504CG-1; the 7/8-5/8 arbor version is a separate part (158734), and the double-row MK-504SG-2 is a different model.