The best large hole wood drill I have ever had. Chewed heavy processed wood like butter. Recommended for use only with 1/2" or 5/8" HD low speed, high torque drill motors with an auxiliary handle to better control the feed rate of this aggressive drill bit. This drill will quickly overheat and overload all but the heaviest cordless drills. To sum up, when you need to quickly drill precise 3" round holes with a completely clean finish, this Milwaukee drill bit will exceed your expectations. Note: Hold it tight as it penetrates the material quickly and make sure you tighten the center pin set screw very firmly with the wrench provided so it doesn't come loose in the hole when you remove the drill bit from the blind hole .