3Piece 150mm TCT Circular Saw Blades with Adapter Rings 5013433150032 on eBid United States | 186965040
6pcs Set Circular Saw Ring For Circular Saw Blade Reduction Ring Conversion Ring Cutting Disc Aperture Gasket Inner Hole Adapter - Saw Blade - AliExpress
Adapter for Lamello Circular Saw Blades - CNC-Tool.com
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
10pc Circular Saw Blade Reducing Rings Conversion Ring Saw Cutting Washer Inner Hole Adapter Ring Blade
Big Foot Tools 10-1/4" Beam Saw Adapter Kit Style 1 - Big Foot Saws