Nicholson 08243NN Mill File 4 in Bastard Cut Single Cut

Product Description

The NICHOLSON 08243NN is a 4-inch mill file designed for single-cut, bastard-coarse material removal on metal surfaces. It measures 7/16 inches wide and 5/64 inches thick, with a tang for use with a file handle. The single-cut tooth pattern produces a smoother finish than double-cut files and offers controlled stock removal in one stroke direction. Machinists, pipefitters, plumbers, and general metal fabricators reach for this style of file when dressing edges, deburring cut pipe, or refining flat metal surfaces. At 4 inches, it is compact enough for tight spaces while still delivering effective cutting action on ferrous and non-ferrous metals.

This mill file is suited for light metalworking tasks in both residential and commercial trade settings. Typical applications include deburring conduit and pipe ends after cutting, dressing valve seats, smoothing weld spatter, and cleaning up threaded fittings. Its American Pattern profile and bastard cut coarseness make it a standard utility file found in HVAC, plumbing, and electrical toolkits. A handle is recommended for safe operation and is sold separately. The file is rigid and non-flexible, maintaining a consistent cutting angle throughout use.

Key Features

• 4-inch file length provides compact reach for confined work areas
• Bastard cut coarseness balances fast stock removal with a reasonably smooth finish
• Single-cut tooth pattern for directional, controlled metal filing
• 7/16-inch width and 5/64-inch thickness suit narrow or flat workpieces
• Tang end accepts a standard file handle for safer grip and leverage
• American Pattern profile follows standard trade-shop sizing conventions

Compatibility

Designed for use on metal workpieces including ferrous and non-ferrous stock. Compatible with standard file handles sized for tang-style files. Suited for deburring, edge dressing, and surface finishing tasks across HVAC, plumbing, and electrical trade applications.

Installation Notes

Always fit a handle onto the tang before use to prevent hand injury from the exposed point. Apply forward stroke pressure and lift on the return stroke to preserve tooth life. Keep the file clear of oil and grease, which can load the teeth and reduce cutting performance. A file card or wire brush should be used periodically to clear metal filings from the teeth.