This Irwin 1837489 #3 Square 4 inch Impact Power Bit is a top-quality tool that is perfect for both commercial and residential use. The black color of the bit is sleek and adds a touch of style to your toolkit. The impact power bit is designed for easy use with power tools and air tool accessories, making it a versatile addition to your collection. With a length of 4 inches, this bit is suitable for a variety of projects. It is manufactured in China and comes as a single item in the package. The brand is IRWIN, and the model number is 1837489. This tool is perfect for those who are looking for a reliable and durable bit that can handle tough jobs with ease.