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
Reducing Ring Circular Accessories Circular Saw Ring Conversion Multi-size | eBay
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2Pcs Circular Saw Ring For Circular Saw Blade Reduction Ring Conversion Ring - Walmart.com
GURHAN Amulet Sterling Silver Cocktail Ring, 16mm Round, with No Stone
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