Based on our own experience, Milwaukee's bi-metal material for hole saws and accessories is a game-changer. The material can plow through metal, wood, and plastic with ease. Its durability is impressive and makes it a reliable choice for industrial and scientific cutting applications. The unique design of the material allows for faster and smoother cuts, reducing the time spent on a project. However, the price point is a bit steep when compared to other materials, but for the quality, it'sβ¦