The 91200 Combidisc Electric Grinder is an excellent addition to any industrial power tool collection .Based on my observations it has a powerful motor that can run at different speeds with ease, making it ideal for various grinding tasks. The easy-to-use controls and ergonomic design make it comfortable to USE for extended periods. However, the only con I see is that it may be a bit heavy and bulky for some users. Overall, this grinder is a reliable and versatile investment that will help any industrial professional tackle their projects efficiently..