MPROVED METAL CUTTING PERFORMANCEIncreased wall thickness improves durability and minimizes tooth lossOptimized tooth design penetrates metal with easeFAST, EFFICIENT CUTTING IN WOODLarger, sharper teeth remove more wood for fast cuttingEASY PLUG REMOVALSpeed Slot staircase design for fast, easy plug ejection*vs. Prior Lenox 30808600P - KITS-H/S KIT 600P/PLUMBER 6 SIZES; BI METAL HOLESAW KITS