Big Hawg, 2-1/8", Carbide Hole Cutter, 50X Life In Nail Embedded Wood & Abrasive Material Applications, Cuts 1000 Plus More Nails, 5X Faster Cuts, Carbide Tipped Multi-Material Pilot Bit For Increased Material Versatility, Thicker Backer For Extreme Life In Demanding Applications, Optimized Slot Design For Fast Plug Removal, Enlarged Braze Surface For Stronger Bond To The Carbide Teeth, Cuts Wood, Nails, Shingles, Cement Board, Plaster & More.