Grobet 31.375 Swiss-pattern File 6 in Three Square Cut 4

Product Description

The GROBET 31.375 is a Swiss-pattern file designed for precision material removal and finishing in metalworking and toolmaking applications. This three-square (triangular) file features a Cut 4 double-cut tooth pattern, which produces a fine, smooth finish suited for deburring, refining edges, and working in tight angular spaces. At 6 inches in overall length with a 3/8-inch wide body, it is a compact tool built for controlled hand-filing where accuracy matters. The tang end accepts a standard file handle. Machinists, toolmakers, die makers, and skilled trade professionals typically rely on Swiss-pattern files for exacting work that standard American-pattern files cannot achieve.

This file is appropriate for precision filing tasks on ferrous and non-ferrous metals, including steel, aluminum, brass, and hardened tool steel surfaces. The three-square profile allows access to internal corners, V-grooves, and angular slots where flat or half-round profiles cannot reach. The Cut 4 rating positions this file toward the fine end of the Swiss-pattern cut scale, making it best suited for finish work, light stock removal, and edge refinement rather than heavy material removal. It is commonly used in tool-and-die shops, maintenance facilities, and precision fabrication environments.

Key Features

• Three-square (triangular) profile for access to internal corners and angular grooves
• Cut 4 double-cut tooth pattern delivers fine, controlled material removal
• 6-inch overall length for compact handling in close-quarter filing
• 3/8-inch body width provides sufficient contact surface on narrow workpieces
• Tang end compatible with standard aftermarket file handles
• Swiss-pattern construction for standard-precision metalworking and finishing tasks

Compatibility

Designed as a general-purpose Swiss-pattern hand file for use with standard file handles in precision metalworking, toolmaking, and maintenance applications.

Installation Notes

Always fit a properly sized handle onto the tang before use to prevent hand injury. File in one direction with controlled forward strokes; avoid rocking the file across the workpiece to maintain a flat cutting action. Secure the workpiece in a vise or fixture before filing. Keep the file clean with a file card to maintain cutting efficiency and prevent pinning.