Diablo, 9 Piece, General Purpose, Carbide Hole Saw Set, Includes: 1" Carbide Hole Saw, 1-1/8" Carbide Hole Saw, 1-3/8" Carbide Hole Saw, 1-1/2" Carbide Hole Saw, 2" Hole Saw, Snap Lock Plus Mandrel, Pilot Bit, 5/8" Threaded Adaptor Fits Diameters 1-1/4" To 6" & 1/2" Threaded Adaptor Fits Diameters 9/16" To 3-1/16", 60 mm 2-3/8" Cutting Depth For 40% Deeper Holes In 1 Pass & Increased Productivity, Snap Lock Plus Mandrel System For Quick & Easy Change With No Down Time, 1 Size Fits All Mandrel, Fits All Diablo Hole Saws From 5/8" To 6" Diameter, Allows Operators To Cut Wood, Nail Embedded Wood & Metal Using The Same Hole Saw Cup, 10x Faster Cutting In Hard Materials, Tool Free Plug Ejection For Fast Material Removal, Variable Tooth Design Delivers Faster & Easier Drilling With Less Operator Effort, Drills Clean Wood, Nail-Embedded Wood, Plastic, Aluminum, Metal, Cast Iron & Stainless Steel, For Use With A Drill Press Or Hand Held Drill.