Nicholson 21708NN Round File 6 in Bastard Cut Single

Product Description

The NICHOLSON 21708NN is an American-pattern round file designed for material removal, shaping, and deburring in machining and fabrication work. This single-cut, bastard-cut file measures 6 inches in overall length with a 4.5-inch cutting surface, giving the technician or machinist an efficient tool for controlled stock removal on metals, plastics, and similar materials. The ergonomic handle is included, providing a secure grip during use. At 0.19 pounds, it is lightweight and easy to maneuver in tight work areas. Single-cut files like this one produce a smoother finish than double-cut styles, making them a common choice for finishing passes and precision fitting work.

This file is suited for use in machine shops, maintenance facilities, and general metalworking environments where round-profile filing is required. Typical applications include enlarging or finishing round openings, smoothing drilled holes, and shaping curved surfaces. The bastard cut is a mid-coarseness grade that balances material removal rate with surface finish quality, making it appropriate for a wide range of ferrous and non-ferrous metals encountered in machining and repair work.

Key Features

• Round profile for filing curved surfaces, holes, and round-profile slots
• Bastard cut grade balances stock removal with surface finish quality
• Single-cut tooth pattern produces a smoother finish than double-cut files
• 4.5-inch length of cut provides adequate working surface for most applications
• Ergonomic handle included for secure grip and reduced hand fatigue
• Lightweight at 0.19 pounds for easy one-handed use

Compatibility

Designed as a standard American-pattern round file for general machining and metalworking applications where a 6-inch bastard-cut single-cut round file with handle is specified.

Installation Notes

Files are hand tools installed by machinists, maintenance technicians, and metalworkers without power tools. Always inspect the file for cracks or damaged teeth before use and ensure the handle is fully seated on the tang before applying pressure. Never use a file without a handle, as an exposed tang can cause serious hand injury. Store files individually or separated to prevent tooth-to-tooth contact, which dulls cutting edges prematurely.