How to Clean Rust From a Saw Blade | eHow- antique round saw blades ,Rust can build up on any exposed metal surface. This is especially true for saw blades. Whether that blade belongs in an electric saw or is a handheld type, the overall process for cleaning the rusty blade remains the same. The blade's rusted surface can ruin the efficiency of the cutting teethircular Knives and Circular Blades | Baucor ..ircular Knives and Circular Rotary Blades If precision, quality and short lead time all matter, you are at the right place. Baucor manufactures and supplies literally thousands of both standard and custom size precision circular knives and circular rotary blades for all kinds of use from slitting, cutting and perforating to rewinding.