DeWALT D180040 Hole Saw, 2-1/2 in Dia, 1-13/16 in D Cutting, 5/8-18 Arbor, 4/5 TPI, 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.