• Best For: Floor prep crews whose grinder has a 5/8-11 threaded spindle and who want a 5-inch double-row turbo cup wheel.
• Highlight: Double-row turbo segments on a 5-inch (127mm) Supreme Grade MK-504SG-2, versus the single-row MK-504CG-1 series.
• Expert Note: This code is the 5/8-11 nut version of the 5-inch MK-504SG-2; the 7/8-5/8 arbor version is a separate part (158732), and the 7-inch size is separate again.