We have used this specialty finish diameter drill bit for our industrial projects and it has stood up to our expectations. Based on our own experience, this is an excellent tool for metalworking and carpentry tasks. The QUALITY of this product is top-notch, and the finish it provides is quite impressive. The only downside is that the price may be a little on the higher side, but it is definitely worth the investment. We highly recommend this product from the Industrial and Scientific category to anyone in the cutting tools industry looking for reliable performance. .