Circular saw reduction rings - 30mm outside & 12.7mm inside - 1.8mm thick (DART)
Circular Saw Blade Reducing ring 30mm To 12.7mm X 1.8mm Rings to Ensure that Blades fit Safely to your Machine when the Blade bore size is Different
Fits all makes of saw blade
Reducing Ring - 30mm outside & 12.7mm inside - 1.8mm thick (DART)