The Widia GTD brand pipe tap 3/8″ – 18 NPT is a high-quality spiral flute pipe tap made in the United States. With a 3/8 inch – 19 tap thread size, this product is ideal for metalworking and manufacturing tasks. It is designed for precision and efficiency, making it a reliable choice for professionals in various industries. The Widia brand is known for its durable and long-lasting tools, ensuring a smooth and successful tapping experience.