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The NICHOLSON 37779 is a Swiss-pattern round needle file designed for precision filing work in metal fabrication, toolmaking, and maintenance applications. It features a Cut 0 tooth pattern, which is the coarsest grade in the Swiss-pattern system, making it well suited for faster material removal on softer metals and initial shaping tasks. The file has an overall length of 6-1/4 inches with a 3-inch length of cut and a 0.11-inch diameter. The tang-style end accepts a standard file handle, sold separately. Machinists, tool-and-die workers, and maintenance technicians are the primary users of this type of file.
This file is used in precision metalworking environments where controlled, repeatable filing is required in tight spaces or on detailed workpieces. The round cross-section makes it effective for enlarging holes, smoothing curved internal surfaces, and filing round slots or grooves. At needle file scale, it handles detail work that larger files cannot reach. Typical applications include deburring, fitting, and finishing operations on metal parts in shop or field maintenance settings.
Designed as a standard Swiss-pattern needle file for use with compatible tang-style file handles in general precision metalworking and maintenance applications.
Files are installed by licensed tradespeople, machinists, and maintenance technicians. Always fit the tang securely into a properly sized handle before use to prevent hand injury from an exposed tang. Inspect the file for cracks or broken teeth before each use and replace if damaged. Do not use a file as a pry bar or striking tool, as the hardened steel is brittle and may fracture.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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