The Makita Diamak P-64179 Diamond Core Drill Bit is a high-quality drilling tool designed for professionals. With a diameter of 152mm, this drill bit is perfect for drilling large holes in various materials with ease. The Makita brand ensures reliability and durability, making this drill bit a valuable addition to any toolkit. Whether you are a contractor, a DIY enthusiast, or a skilled tradesperson, this diamond core drill bit will help you tackle your projects with confidence. New and unused See pic’s for details.