Firestone

Firestone is Produced by McGowan Manufacturing. Leading the industry in quality, convenience, and durability, McGowan invented and manufactures Firestone and DiamondStone brand knife sharpeners, hand axes, and sport axes. McGowan's Firestone / DiamondStone knife sharpeners make it easy to sharpen kitchen knives, utility knives and sporting tools. Made from a blend of aluminum silica and ceramic and diamond, our knife sharpeners provide the perfect sharpening surface.