This industrial drill bit was a complete disappointment. Despite the fact that it is advertised as a powerful and durable tool, it consistently struggles to cut through tough materials. Thanks to my knowledge gained in practice, I was able to confirm that this product is lacking in quality. The only positive feature I can mention is that it does not easily overheat, but that's not enough to make up for its overall poor performance. As an industrial and scientific worker, I recommend avoiding this product at all costs.