10 mm X 1.25-Pitch Metric Arbor Grinder Adapter Nut (Adapts Metric Spindle to 5/8"-11 Spindle) $5.14 Quick Shop Compare
10 mm X 1.50-Pitch Metric Arbor Grinder Adapter Nut (Adapts Metric Spindle to 5/8"-11 Spindle) $5.14 Quick Shop Compare