MAPTCO 4-1/2" (115mm)-30T, Metal Working Circular Saw Blade, Arbor 3/8"(9.5mm), Use on All Brand 9.5mm Arbor Cordless Saw, Metal, Steel Iron Bar, Sheet, Angle Cutting - Amazon.com
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Rockwell 4-1/2in Metal and Aluminum Circular Saw Blade (RW9282)