Nicholson 21687NN Mill File 6 Inches Single Cut Bastard

Product Description

The NICHOLSON 21687NN is a 6-inch American-pattern mill file designed for precision filing work on metal surfaces, including milling cutters, saw blades, and general metalworking applications. This single-cut bastard file features a flat mill profile measuring 2.5 inches wide and 1.13 inches thick, with a cutting length of 5.125 inches. The ergonomic handle provides a secure grip during use. It is a non-flexible file built for controlled material removal on ferrous and non-ferrous metals. Machinists, tool-and-die workers, and maintenance technicians typically use this type of file for dressing and sharpening cutting tools.

This file is suited for shop and field use in metalworking environments where a single-cut bastard mill file is required. Single-cut files remove material in one direction and produce a smoother finish than double-cut files, making them appropriate for draw-filing operations and finishing passes on milling cutters and flat metal surfaces. The American pattern is a standard profile widely specified in maintenance, repair, and machining trade work.

Key Features

• Single-cut bastard coarseness for controlled material removal and smooth finish on metal
• 6-inch overall length with a 5.125-inch cutting length
• Flat mill profile: 2.5 inches wide and 1.13 inches thick
• Non-flexible construction for rigid, precise filing strokes
• Ergonomic handle included for secure grip and reduced hand fatigue
• American-pattern profile suited for milling cutters and general metal filing

Compatibility

Designed as an OEM-style American-pattern mill file for use on metal workpieces including milling cutters and flat metal surfaces requiring bastard-cut single-pass material removal.

Installation Notes

This file is a hand tool requiring no installation. Machinists and maintenance technicians should secure the workpiece firmly in a vise before filing. Apply consistent forward pressure and lift the file on the return stroke to preserve cutting teeth and extend tool life. Inspect the handle for secure fit before use and replace the handle if it shows signs of cracking or looseness.