As an Industrial and Scientific professional, I have tested this grinding abrasive and was happy with its performance .It was able to grind tough materials quickly and smoothly. As a result of my tests, i determined that this product is a reliable and efficient tool for my industrial needs. However, the only downside is that it can be quite expensive compared to other similar products in the market. Overall I highly recommend this grinding abrasive for anyone looking for a high-quality industrial power tool..