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The Epitome For The Gunsmith

Super-hard, pure polycrystalline cuts tool steel, hardened steel and tungsten carbide. Perfect for final honing. These stones cannot be classified in terms of "grit" but only in terms of the average grain size. The average grain size of types "fine" and "medium" is about 10µ (microns).


Big Book Catalog, Issue:69, Page:448

SPECS: No. 221 Flat - 4" (10.2cm) x 5/16" (8mm) x 1/4" (6.3mm). No. 291 Knife - 4" (10.2cm) x 5/8" (15.9mm) x 1/8" (3.2mm).

n/a - GESSWEIN RUBY STONES

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Style: Ruby