The Brownells Metal Checkering File 40 LPI (#1) delivers dead-on spacing for grip frames, hammer spurs, backstraps, triggerguards, and ribs—anywhere an improved gripping surface is needed. This precision tool measures 8 inches long with a ½ inch width, offering a 6-inch cutting area. The finer cuts produce a matting effect that reduces glare and light distortion, making it ideal for both functional and aesthetic firearm customization.
Working similarly to wood checkering, you layout master lines using a guide, then establish the pattern by advancing the file a few teeth at a time along previous lines as reference marks, and finish by bringing the pattern to final depth with a 60° needle file. Available in multiple lines-per-inch configurations including 20, 25, 30, 40, 50, and 75 LPI, allowing you to select the precise cutting pattern for your specific project. Whether you’re working on 1911 front straps, slide serrations, or custom metalwork, this file provides the accuracy and durability gunsmiths rely on for professional checkering results.
