Based on my observations, this sanding mandrel is a game changer for my woodworking projects. Its durability and efficiency are unmatched, helping me achieve a smooth finish in record time. The mandrel fits perfectly in my rotary tool and can be easily adjusted for different sanding requirements. However, the only downside is that it can be quite costly compared to other similar products on the market .Nonetheless its performance and longevity make it worth the investment..