Belt Sander Adapter for Angle Grinder, Pipe or Tube Sanding Attachment, US 5/8-11 Thread, 1.68" Maximum Shield Mount, Professional Polishing Tool for Rust Removal, Woodworking (20-40mm Belt) - Amazon.com
M10/16mm Hole Drill Angle Grinder Mandrel Adapter Disc Holder Kit Spanner Kit Power Tools - Tool Parts - AliExpress
Angle Grinder Conversion Tool M10 to M14 Adapter Converter for Cutting Discs | eBay
Airgas - BOS2610906326 - Bosch 5/8" - 11 Large Angle Sander/Grinder Adapter Kit (For Use With 1752G7 Angle Grinder)