Angle Grinder Attachment M14 Adapter 5/8 inch 11 Female to M14 Male 12 – Drilax Tools
Flapper Adapter Metric M12 x 1.75 - Caswell Inc
Milwaukee Angle Grinder Adapter: 5/8"-11 Thread Size, Round with Flats Arbor Shank, High Speed Steel | Imperial Supplies
5 PCS Electric Drill Conversion Angle Grinder Adapter Connecting Rod Kit with Spanner Variable Shaft Coupler Converter Tool,6mm/10mm Arbor Mandrel Adapter,Adapter Set for Most Small Angle Grinder - Amazon.com