M89B Circular Saw Blade Bushing Kit Variable Diameter Idler Ring Circular Saw Blade Ring With Washer OOTDTY Features: Suitable For Circular Saw Blades. High hardness, wear resistance and long service life. Made of high-quality stainless steel, it is reliable and safe. Suitable for electric wood saw. Reducing rings should be used with saw blades to reduce the diameter of the central hole. Specification: Material: Stainless Steel Outer Diameter 2cm(0.79 inch), Inner Diameter 1.6cm(0.63 inch)/Outer Diameter 2.54cm(1 inch), Inner Diameter 2.2cm(0.87 inch)/Outer Diameter 2.2cm(0.87 inch), Inner Diameter 1.6cm/(0.63 inch)Outer Diameter 2.2cm(0.87 inch), Inner Diameter 2cm(0.79 inch)Package Includes: 1 x Inner Hole for Cutting Intermediate Ring Note: Please allow 0-1mm errors due to manual measurement, Please make sure you do not mind before ordering.