DeWALT D180012 Tough Hole Saw, 1/2-20 Arbor, 1-7/16 in D Cutting, HSS Cutting Edge

With a double-tooth design for long life and extreme durability, DeWALT bi-metal hole saws power through 2X the material in a single pass. A sharp tooth geometry expedites cutting and thick, hardened backing plates helps to prevent thread stripping. A high-speed steel height makes them ideal for tough jobs.