I've been using this thing a lot lately, mostly on my rock drill as a digger for heavy clay soil and even compacted AB. My tool is household and it takes a little effort to get through the floor and AB, but it's still way better than a digger or pickaxe! We dug a giant 3 x 2 foot hole and several other smaller holes to plant plantations behind the newly constructed walls. I screwed the hell out of my hammer drill and the shank and tool head continued to perform like a champ. The tool is still sharp and shows no signs of wear. Highly recommended tool, stay sharp and strong!