They cut through wood and metal rapidly and last a long time. You will not regret buying these. They look expensive but when you think of the dozens of normal blades you'd go through before this wears out you'll realize you are saving money (and not wasting time changing blades all the time).
Diablo DOS125CF3 1-1/4 in. Starlock Carbide Oscillating Blades for Metal, 3/Box
