Apex 12790 Square File 4 Inch Bastard Cut

Product Description

The APEX 12790 is a 4-inch bastard-cut square file designed for material removal, deburring, and finishing work on metal, wood, and similar workpieces. It features a double-cut tooth pattern that aggressively clears material while leaving a surface ready for finer finishing. The square cross-section measures 0.130 inches on each side, and the file tapers slightly toward the point for access to narrow slots, keyways, and tight corners. Hard-stamped markings provide permanent identification. This file is a standard hand tool for machinists, pipefitters, HVAC technicians, and general trade professionals.

The 12790 is suited for bench work and field use wherever a compact, square-profile file is needed. Its 4-inch length makes it well suited for detail work in confined areas, such as cleaning up burrs on pipe ends, dressing valve seats, or fitting parts during fabrication. The bastard cut offers a medium-coarse tooth pattern — faster cutting than a second-cut or smooth file, but still controllable enough for precision fitting tasks common in plumbing, HVAC, and electrical trade work.

Key Features

• Square profile with 0.130-inch width and 0.130-inch thickness for slot and keyway work
• Bastard-cut, double-cut tooth pattern for efficient material removal
• Tapered slightly toward point for access to restricted areas
• 4-inch file length suited for detail and close-quarters filing
• Hard-stamped marking for permanent, legible part identification

Compatibility

Designed as a general-purpose square hand file suitable for use on metal, wood, and composite materials in trade and fabrication applications.

Installation Notes

This file is a hand tool requiring no power source or fastener installation. Secure the workpiece in a vise before filing to maintain control and reduce injury risk. Always file with a handle attached to the tang to prevent hand injury. Inspect the file for cracks or damage before use and replace if the teeth are worn smooth or the body is compromised.

Technical Specifications

• File Shape: Square
• File Cut: Bastard
• Edge Type: Double Cut, Tapered Slightly Toward Point
• File Length: 4 inches
• File Width: 0.130 inches
• File Thickness: 0.130 inches
• Diameter: 0.156 inches
• Marking Style: Hard Stamped
• Weight: 0.03 pounds
• Unit of Measure: Each

Standard Information

• Brand: APEX
• Manufacturer Part Number: 12790