Purchased about 2 years ago I work in a welding shop and repair various things. I often use it for grinding cracks in materials, locating cracks, grinding small holes to tolerance, or deburring welds in tight corners. So far I would say it has earned its place in my toolbox and has been one of the best purchases I have ever made. Oils often and the bottom block wants to unscrew so I screwed the lock on and have been happy ever since. It's starting to show some play in the bearings but it's outlasted sooo many other die grinders in our shop I can't complain.