Polished Perfection
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You’re going to need a little bit more than a flat file and some sandpaper to polish the beams on a set of rods. The Deluxe Engine Porting Kit from Standard Abrasives contains all sorts of grinding bits and cartridge rolls. The Standard Abrasives products are made specifically to work metal surfaces, unlike many hardware store–type abrasive products that might be designed for wood or other surfaces. View Related Article
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