Gunline Checker Gauge Ruler The Gunline Checker Gauge Ruler is an essential tool for precision checkering on firearm stocks. Whether you're a seasoned gunsmith or a hobbyist, this ruler ensures accurate measurements and consistent patterns. Features: Accurate Measurements: The ruler provides markings for various checkering patterns, including lines per inch and diamonds per inch. Durable Construction: Crafted from high-quality materials (typically steel), it withstands regular use. Easy to Use: Simply place the ruler on the checkered surface to verify pattern dimensions. Versatile: Suitable for both beginners and experienced checkering enthusiasts. Mfg: Gunline