Bushings Adaptors Reducers for Circular Saw Blades Round Diamond Adapter Set | eBay
Saw Blade Arbor Adapter, 20mm To 5/8 in.
5/8 to 1 inch arbor adapter on a dewalt dw716 12" miter saw - YouTube
Klein Tools 3/8 in. Hole Saw Arbor with Adapter 31905 - The Home Depot
Amana Tool BU-121 High Precision Saw Blade Bore Reduction Bushing Reducing Circular Saw Blade Arbor Adapter Ring 20mm x 10mm - Amazon.com
152636-00 Miter Saw Blade Adapter Ring (1" x 5/8") Compatible with De-Walt 12 inch Miter Saw DW718, DWS780, DW704, DW705 and More. Replaces 45-88-0330 - Amazon.com
saw blade arbor adapter
What To Know About Miter Saw Blades | The Family Handyman