Gold & Platinum Flat Ring Sizing Stock – 3" Lengths Size:4.0 x 2.0mm A Quatro F220 HEPA filter

A Quatro F220 HEPA filter (Otto Frei part number 147

tapered to a rounded point Material Heat-tempered chrome alloy steel Origin Switzerland Length Measurement Measured from where teeth begin to end of file — does not include tang Available Lengths 3" (75mm)

and patterns

75mm) Shank Type Bent square shank (gooseneck) Hallmark PT950 Material Heat-treated tool steel Country of Origin USA and Germany Notes

They are designed to fit the Swiss Torch and the Swiss Torch II

Gold & Platinum Flat Ring Sizing Stock – 3" Lengths Size:4.0 x 2.0mm A Quatro F220 HEPA filterFlat ring sizing stock in recycled precious metal for resizing and rebuilding bands at the bench. Clean, flat stock cuts and solders smoothly for precise ring adjustments. Features Flat profile sizing stock designed specifically for ring sizing work. Supplied in short straight lengths that are easy to cut and fit to the shank. Offered in multiple cross section dimensions to suit narrow through wide bands. Multiple metal choices so you can closely