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The Nicholson silversmith's riffler file has style 10 rectangular ends with double-cut grade 2 Swiss pattern teeth for precision filing of straight surfaces. The file has a long middle section and thicker dimensions than die sinker's files for tougher applications in hard-to-reach places. It has double-cut Swiss pattern teeth for rapid removal of material on delicate or intricate parts. It has teeth on both ends for extended tool life and can be gripped in the middle section where there are no teeth.
Hand files are used to remove material and smooth and shape workpieces. They have forward-facing cutting teeth and cut when pushed over either a stationary or rotating workpiece. Single-cut teeth have single rows cut diagonally across the width of the file. Double-cut teeth have two sets of rows cut in opposite directions. American pattern files have three coarseness grades. Coarse, also known as bastard cut, is suitable for efficient, heavy material removal where finish is not a concern. Medium, also known as second cut, offers average material removal and finish quality. Fine, also known as smooth cut, provides the smoothest finish. Swiss pattern files have eight coarseness grades, from 00 (coarse), 0 (medium), and 1 to 6 (fine to finest), offering a smoother, more precise finish than equivalent American pattern files.
Nicholson manufactures hand tools and power tool accessories. The company is headquartered in Sparks, MD.
Customer
Reviewed in Canada on September 17, 2017
the curved end makes it good for spot filing
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