Purchased March of this year - 2 items. 1.) I've only oiled it 11 times since I bought it and 2.) I've used it off and on every day [specifically for waxing and polishing cars, not sanding] since I bought it and it holds up surprisingly well. I only grind for certain clients and obviously it's really, really good. But mostly I use polish, glaze and wax/seal. I've converted black Porsches into glass Porsches with this part, I've finished sanding my car to prepare it for ceramic coatings and oh my god it looks amazing now. Highly recommended as a starter!