Team FIN was impressed by the overall performance of the line. The thin wall hole saws work well on thin gauge metal up to 1/8 in. thick. A stop shoulder design prevents over-drilling material and possible damage to inner components. It also has an ejection spring which Team FIN said is a really useful feature – it cuts down on time spent removing wedged, stubborn material. The sharp blades ate through material fast, making clean, even cuts without dulling. According to Milwaukee, the hole saws provide up to 40% faster burr-free cuts than standard bi-metal hole saws, and deliver up to 2 times longer life than the competition.