The PIN GAGE VT .646 (+) STEEL from Field Tool Supply is a precision measuring tool designed for quality control and inspection. This pin gage features a diameter of .646 inches and is made from high-quality steel, ensuring durability and accuracy. It is ideal for checking hole sizes and ensuring proper fit in various applications. The positive tolerance ensures that it meets stringent measurement standards, making it a reliable choice for engineers and machinists. This pin gage is essential for maintaining precision in manufacturing processes.