The US Forge Mounted Grinding tool is an excellent product for those who work with metal grinding and polishing .Through trial and error, I found that this tool produces a smooth and consistent finish on various metals. The abrasive material is durable and long-lasting making it suitable for industrial and scientific use. The only downside I found is that it can be a bit noisy during operation. Overall, this is a great tool for those in need of a reliable and effective grinding solution..