Need to find the exact center of a round bar or rod quickly and accurately? This AD INTERNATIONAL Centre Square Finder is the tool for the job. It's made from durable tool steel, with a high-precision blade that's been tempered and ground for lasting accuracy. The capacity is 3 inches (75 mm), meaning it can handle round materials up to that diameter. Simply place the tool across the end of your round stock, scribe a line along the blade, rotate the stock, scribe again, and where the lines intersect is your center point. It's essential for machinists, metalworkers, welders, carpenters, or any DIY enthusiast working with round materials. This simple, reliable tool saves time and improves precision in drilling, turning, or layout work. A must-have for your workshop toolbox to ensure your projects are spot-on.