This high-speed steel hand tap plug by Alfa Tools is a top-quality tool designed to make your metalworking tasks a breeze. With a tap thread size of 1/2 in - 20, this tool is perfect for those looking for precision and accuracy in their work. Made in the United States, it is a testament to American craftsmanship and ingenuity. This hand tap plug is perfect for use in various applications, including CNC, metalworking, and manufacturing. It is a must-have for businesses and individuals alike who want to achieve the best possible results in their work. Add it to your metalworking supplies today and enjoy the benefits of its top-quality design and construction.