Diablo, 112 x 238, Hole Saw, High Performance Hole Saws Deliver Faster Cutting Performance Increased Productivity, Hole Saw Design Provides Ultimate Cutting Depth To Bore Deeper Holes In Single Pass, Variable Tooth Design For Faster Cuts With Less Vibration Tool Free Plug Ejection For Fast Material Removal, Snap Lock Offers Quick Easy Change System With No Down Time, One Snap Lock Mandrel Fits All Diablo Hole Saws, From 58 To 6 Diameter, For Use With Wood, Metal, Mandrel Pilot Bit Sold Separately