The MAKITA 4 1/8 inch Core Drill Bit is designed for use with Model 7980499. This specific core bit has a size of 105 x 150mm, making it suitable for drilling precise holes in various materials. As a product from MAKITA, a well-known brand in the industry, you can expect high quality and performance from this core drill bit. Perfect for drilling tasks that require accuracy and efficiency, this core bit is a reliable tool for professionals in the construction and industrial fields.