This Screw Pitch Gauge (English Gage) is an essential tool for machinists, mechanics, and technicians who need to quickly and accurately identify thread pitches. Featuring 51 precision blades, it covers a complete range of 4 to 84 threads per inch (TPI), making it suitable for both coarse and fine threads in inch-based fasteners. Crafted from hardened, high-grade steel, this gage offers excellent wear resistance and long-term accuracy. Each leaf is clearly marked with its pitch size and folds compactly into the tool's body for convenient storage and protection. Proudly made in the USA, this screw pitch gauge delivers professional performance and reliability for use in the workshop, field, or manufacturing floor.