The Groz Center Gauges are essential tools for anyone who needs to grind and set thread-cutting tools, or who needs to check the pitch of threads. Made from high-quality stainless steel, these gauges are built to last and will provide accurate measurements for years to come. The permanent deep etched graduations in 14ths, 20ths, 24ths, and 32nds of an inch make it easy to determine the pitch of threads, making these gauges ideal for use in any industrial setting. Our Center Gauges are manufactured to meet American National or US 60° and Whitworth or English 55° specifications, ensuring that you have a tool that you can rely on for all your measuring needs. Whether you're working in a machine shop, a metal fabrication plant, or any other industrial setting, our Center Gauges are an indispensable tool that you won't want to be without.