Quick Change Carbide Tipped Hole Cutter Kit. Includes 7/8", 1-1/8", 1-3/8" and 2" Cutter Heads, Arbor, Hex Key and Case. Cuts Stainless Steel Quickly and Easily. Quick Change Arbor Allows You to Change Cutter Heads With A Simple Push and A Turn. Use The Same Arbor For Different Size Cutting Heads. Removable Cutter Heads Available In Sizes From 5/8" Through 3". Flange Stop Prevents Over-Drilling. Ejector Spring On All Sizes Above 3/4" Makes Removal Of Slug Easier. Replaceable, Cobalt-Steel Pilot Dri