Milwaukee 49-56-7240 Large Arbor Hole Saw 7/16" Q/ C, Ergo GripBuilt like a tank. The quality is obvious. The package does not include an Allen key to remove the drill. However, the drill has a key; it has a flat spot where a hex bolt can be mounted. But you better not lose the screw! Don't rely on storing it in a plastic bag; Store it in a plastic container. Some may prefer a flathead or Phillips screwdriver instead of an Allen key. Once you find the right hex wrench, you'll want to keep it along with the hex bolt. Although not required, you can apply a drop of Blue Loctite to the threads of the hex bolts just in case.