63mm-162mm Diamond Core Drill Bit Wet Dry Concrete Tile Stone Brick Masonry. 100% brand new and high quality. Made of high quality material, safe, non-toxic and durable. Simple and elegant design is a good helper in your life. Crown tooth design, sharper and sharper. Seamless steel tube sintered with high-dang diamond powder. Standard hexagon joint design. The tail of the rhinestone is detachable and flexible, easy to dig out waste. No burning drill, no stuck drill, durable. Wide range of application, suitable for all kinds of engineering drilling, air conditioning, range hood, sewer, heavy wall opening. 1 x diamond core drill bit. Please allow minor errors due to manual measurement. Thanks for your understanding. Monitors are not calibrated same, item colour displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Thanks for your attention. We appreciate highly your cooperation. It is widely used in international online business. Or you can ask your friend for help. Glad to deal with you in the future. Your satisfaction is our pursuit. We will be delighted to help.