Grobet 31.588 Swiss Pattern Needle File Round Cut 4

Product Description

The GROBET 31.588 is a Swiss-pattern needle file ground to a Round profile with a Cut 4 finish, designed for precision material removal in tight tolerances and fine detail work. At 5.5 inches overall length with a 2.5-inch length of cut and 0.13-inch diameter, this file delivers controlled stock removal on ferrous metals, non-ferrous alloys, and hard plastics. The tang-style shank accepts a standard needle-file handle, sold separately. It is intended for use by machinists, toolmakers, jewelers, HVAC fabricators, plumbers, and electricians who require fine finishing in confined spaces.

This file is suited for deburring drilled or punched holes, refining slots and keyways, cleaning up threads, and smoothing weld beads or cut edges in locations where larger files cannot reach. The round cross-section makes it especially effective for enlarging circular openings and working curved internal surfaces. Trade professionals across mechanical, electrical, and plumbing disciplines keep needle files on hand for field-fit and finish work on copper, brass, aluminum, steel, and similar materials.

Key Features

• Cut 4 Swiss-pattern grind for fine, controlled material removal
• Round cross-section profile suited for circular openings and curved internal surfaces
• 2.5-inch length of cut provides usable working surface in confined areas
• 0.13-inch diameter allows access to tight slots, holes, and recesses
• Tang shank accepts standard needle-file handles for added grip and control
• 5.5-inch overall length balances reach with precise hand control

Compatibility

Designed as an OEM-style replacement or addition to standard needle-file sets used with tang-style needle-file handles across general trade and precision fabrication applications.

Installation Notes

A licensed or journeyman tradesperson should select the correct cut number for the material and finish required - higher cut numbers remove less material and leave a finer surface. Secure the tang in a properly sized handle before use to maintain control and prevent hand injury. Inspect the file for cracks or missing teeth before each use and replace if damaged. Files should be used with controlled, even strokes and should not be used on materials harder than the file itself.