I generally purchase the best tools in their class and expect them to perform flawlessly and last for quite some time. The stainless steel DeWALT joint knife pictured above has reached the end of its life after only a few weeks of use and I could not be happier with how it held up. This tool is normally used to spread joint compound over drywall seams. I used it as a low profile, wide chisel by striking it on the end of the handle with a hammer. I estimate that it survived more than 20,000 hammer blows before failing. Fortunately, my back, arm, and wrist have held up a little better.