I have a 20 yr old Delta benchtop drill press ... love the thing. It never moves and I don’t bang on it with hammers and sticks. Lately I noticed a little wobble in the bits and some holes were more obrounds than circles. Put a dial indicator on it today and wow it was out like 40 thou. Popped the chuck off and the spindle ran true. Ordered a new chuck. Just goes to show you need to keep an eye on your tools no matter what your using it for.