
Precision Brand® 321 tool wrap rolls are made of Type 321, soft annealed, stainless steel. They help protect from scale and oxide buildup during heat treating in atmospheric furnaces while eliminating decarburization buildup. Precision Brand® tool wraps are resistant to chromium carbide precipitation during exposure to high temperatures and can be used in furnaces up to 2000 degrees F. Precision Brand® tool wraps protect the surfaces of air hardening tool steels. These are available in rolls with widths 10, 12, 20 or 24 inches and lengths 50 and 100 feet.