This router bit proved to be such a lifesaver for my DIY projects. Industrial and Scientific indeed delivers as I'm impressed by its cutting accuracy and efficiency.Through trial and error, i found that it's perfect for hard and softwood. The bit maintains its sharpness despite frequent use. The downside, however, is the price. I was hesitant to purchase it at first because it`s a bit expensive compared to other brands but it's worth the investment for its overall quality..