The DeWALT DW1632 Self-Feed Wood Bit is a high-quality drill bit designed for easy and efficient drilling in wood. With a diameter of 1-1/4 inches and a length of 14 inches, this bit is suitable for use with a 1/2 inch chuck. The self-feed design allows for smooth and precise drilling, making it a valuable addition to any workshop or tool collection. Made by the trusted brand DEWALT and manufactured in China, this drill bit is reliable and durable for a variety of drilling tasks.please email with any questions.. thank you