This is an excellent Vermont Gage Pin Gage with a measurement of .255+. It is made of high-quality tool steel to ensure durability and precision. The gage is designed to measure the diameter of small holes accurately. The flat head style of the gage is perfect for fitting into tight spaces, and it is sold as a single unit. Additionally, it is manufactured in the United States, making it of superior quality. This gage is ideal for those in the fasteners and hardware industry.