The Milwaukee Adjustable Hole Cutter Replacement Blade and Pilot Bit set offers replaceable components for the Adjustable Hole Cutter (49-56-0320). Included in the set are two replacement blades, a replacement pilot drill bit, and a hex key to easily replace parts. The replacement blades are optimized for quick and smooth cuts. Chose the Milwaukee Adjustable Hole Cutter Replacement Blades and Pilot Bit set for applications in drywall and ceiling tiles including recessed lights, audio speakers, fire and security systems, and clearance holes.