• Best For: Floor-prep crews whose 5-inch grinder uses a 5/8"-11 threaded mount and who want the single-row MK-304CG-1.
• Highlight: Single-row Premium Grade cup wheel (MK-304CG-1) in the 5/8"-11 nut configuration.
• Expert Note: This is the 5/8"-11 version of the MK-304CG-1; the 7/8"-5/8" arbor version is 158068, and the double-row MK-304SG-2 is a different model.