As an industrial and scientific worker I needed a reliable spade bit for my cutting needs.This product proved to be top-notch in terms of speed and longevity. As a result of using this product, I found that it cut through thick materials like butter without getting stuck or dulling easily. Its aluminum shield and spurs prevented any splintering or breaking. The only downside to this product is its limited size range. Nonetheless, it's still a great addition to any cutting tools collection!