Based on my experience as a handyman, i can say that this hole saw is a must-have FOR those in the industrial and scientific field .Its bi-metal construction ensures durability and longevity, allowing for precise and efficient drilling in a variety of materials. The recessed design also prevents any damage to the surface being worked on. The only downside is that it can be a bit expensive compared to other hole saws on the market. However the quality and reliability of this product make it worth the investment..