Lenox LXAH9912CPBM Lenox 1 1/4 - 6in Quick Change Arbor 1/2 Shank

TOOL-FREE BIT CHANGE - No Allen Key Required To Change LENOX Pilot Bit (Only applies to LENOX Pilot Drills). SNAP-BACK® 2-STEP RELEASE - Step 1) Unlock Hole Saw, Step 2) Unlock Pilot Bit. ANTI-JAM COLLAR - Reinforced Collar Drives Hole Saw Without Jamming Or Disengaging. UNIVERSAL HOLE SAW COMPATIBILITY - Accepts All Threaded Hole Saws, No Adapters Required - For the Range of Diameters Listed On Packaging. SINGLE-HANDED OPERATION - Collar Snaps Back and Stays In Position While Changing Bits