Grobet 31.510 Swiss-pattern Needle File Equalling Cut 4

Product Description

The GROBET 31.510 is a Swiss-pattern needle file in an equalling profile, designed for precision metalworking, deburring, and fine fitting tasks in tool-and-die, machining, and general trade work. Cut 4 designates a very fine tooth pitch suited for finishing passes, light material removal, and work on hardened or close-tolerance surfaces. The file measures 6.25 inches overall length with a 3-inch length of cut and features a rectangular cross-section with a tang for use with a compatible file handle. It ships as a single file without a handle attached.

This file is used in applications where tight tolerances and smooth surface finishes are required. Common trades include tool-and-die makers, machinists, pipefitters, and maintenance technicians who need fine control when fitting mating surfaces, cleaning up weld spatter, or dressing tooling. The rectangular equalling profile provides parallel flat faces and edges, making it effective for working slots, keyways, flat surfaces, and shoulders where consistent contact across the full face is needed.

Key Features

• Swiss-pattern construction for consistent tooth geometry and tight pitch tolerances
• Cut 4 tooth rating for very fine finishing and minimal stock removal per stroke
• Equalling rectangular profile with parallel flat faces for flat-surface and slot work
• Needle file classification for precision detail work in confined areas
• Tang end for use with a standard file handle sold separately
• 3-inch length of cut centered on a 6.25-inch overall length for balanced handling

Compatibility

Designed as an OEM-style precision needle file for use with standard tang-style file handles compatible with needle file tangs. No specific model or system compatibility is stated by the manufacturer for this SKU.

Installation Notes

Always seat the tang fully into an appropriate handle before use to prevent injury from the exposed tang. Eye protection is required when filing metal. Files are hardened and brittle - do not use lateral pressure that could cause snapping, and never use a file as a pry or striking tool. Keep the file clean with a file card to maintain cutting efficiency and prevent pinning.