Nicholson 37891 Swiss-pattern Knife File Cut 0 6.25 in

Product Description

The NICHOLSON 37891 is a Swiss-pattern knife file designed for precision filing work in metal fabrication, toolmaking, and maintenance applications. This needle-class file features a Cut 0 coarseness rating on a knife-profile blade, making it suited for fast material removal on softer metals, plastics, and composites where a fine finish is not the primary goal. The overall length is 6.25 inches with a 3-inch length of cut. The blade measures 0.21 inches wide and 0.06 inches thick, tapering to a tang for use with a separately sourced handle. No handle is included.

Swiss-pattern files in the needle class are standard tools for machinists, tool-and-die makers, and precision fabricators. The knife profile allows access to narrow grooves, V-slots, dovetails, and tight interior angles where a flat or round file cannot reach. The 6.25-inch overall length is a common bench-work size suited to close hand control. This file is appropriate for shop use across metal trades and light industrial maintenance where controlled, repetitive filing of slots or edges is required.

Key Features

• Knife profile blade accesses narrow grooves, V-slots, and tight interior angles
• Cut 0 coarseness for efficient stock removal on softer metals and non-ferrous materials
• Needle-class precision level for controlled hand filing
• 3-inch length of cut on a 6.25-inch overall length body
• Tang end accepts a standard aftermarket file handle
• Slim cross-section at 0.21 inches wide by 0.06 inches thick for tight-clearance work

Compatibility

Designed as a standard Swiss-pattern needle file for bench and hand filing applications in metal fabrication, tool-and-die, and general maintenance trades. Handle sold separately; accepts standard tang-style file handles.

Installation Notes

A licensed machinist or skilled tradesperson should select the appropriate handle before use — operating a tang file without a handle risks hand injury from the exposed tang. Secure the workpiece in a vise before filing to maintain consistent stroke control. Inspect the file for cracks or damaged teeth before each use. File in one direction only; dragging the file on the return stroke accelerates tooth wear.