I recently purchased this rounding bearing to add to my collection of cutting tools. As an avid DIY enthusiast I truly appreciated the professional-grade quality of the product. Industrial and scientific in nature, this rounding bearing helped to tackle even the toughest projects with ease. As a result of my tests, i determined that it was highly durable and delivered an exceptional performance .The only downside was the price, but in the end, it was definitely worth the investment. Overall, it`s a perfect addition to any router bit set!