Nicholson T37458 Swiss-pattern Half Round File Cut 4

Product Description

The NICHOLSON T37458 is a Swiss-pattern half round needle file designed for precision material removal in tight or contoured areas. With a cut 4 tooth pattern, this file produces a fine finish suited to detail work on metal, plastic, and similar materials. The half round profile gives the user both a flat face and a curved face in a single tool, making it effective on flat surfaces, inside curves, and irregular shapes. At 5.5 inches overall length with a 2.5-inch length of cut, it fits standard needle file handles and is sized for close, controlled hand filing work performed by machinists, toolmakers, HVAC technicians, and pipe fitters.

This file is used in applications that require refined shaping, deburring, or surface smoothing where coarser files would remove too much material. The needle-level precision and cut 4 finish make it appropriate for finishing ports, slots, keyways, and similar features on fabricated metal parts. It is commonly used in light industrial, mechanical, and trade shop environments where fine file work is part of routine maintenance or fabrication.

Key Features

• Cut 4 tooth pattern for fine, controlled material removal
• Half round profile provides both flat and curved cutting faces
• Needle file classification for high-precision detail work
• 5.5 inch overall length with 2.5 inch length of cut
• Tang style end fits standard needle file handles
• 0.2 inch width and 0.07 inch thickness for use in confined areas

Compatibility

Designed as an OEM-style replacement or direct-use needle file compatible with standard tang-style needle file handles used in general metalworking and trade applications.

Installation Notes

Needle files are hand tools used by machinists, toolmakers, and trade professionals without power or utility shutoff requirements. Secure the workpiece before filing to prevent movement and ensure consistent material removal. Use appropriate personal protective equipment including eye protection when filing metal. Do not apply lateral force that exceeds the file's thickness, as needle files can fracture under bending loads.