16pcs Saw Blade Bushing Set Saw Blade Adapter Ring, Angle grinder inner aperture conversion gasket,1 Inch to 20 mm, 1 Inch to 5/8 Inch, 7/8 Inch to 5/8 Inch, 20 mmto 5/8 Inch,4 per Model - - Amazon.com
JAMESON Pruning Saw Blade With Universal Adapter, 16" | Tallman Equipment Company
Winbyoan Saw Blade Bushing Set Saw Blade Adapter Ring, 1 Inch to 20 mm, 1 Inch to 5/8 Inch, 7/8 Inch to 5/8 Inch, 20 mmto 5/8 Inch, 5/8 Inch to 1/2 Inch, Pack of 10 - - Amazon.com
30pcs Saw Blade Bushing Saw Blade Adapter Ring Saw Cutting Washer Angle Grinder Inner Aperture Conversion gasket30 to 16mm,25.4 to 20 mm, 25.4 to 16mm, 22 to 16mm,20 to 16mm,16 to 12.7mm - - Amazon.com
Fret Blade Adapter Kit - (ONLY COMPATIBLE WITH COPING SAW) - Blue Spruce Toolworks