Wasn't expecting much but very impressive quality tool. Steel shaft, plain bearings held together by quality spring clips. The handle is clearly high quality aluminum and not the plastic I was expecting. I use tools every day, took this one out of the box, threw it on my Milwaukee and got to work. Handle and grip are perfectly straight, nothing dangling; but it's not a precision tool like a dedicated spindle grinder, so it's best for roughing. You'll need to tighten the union nut a bit to avoid