Freud Precision Shear™ Serrated Edge Forstner Drill Bit 3-1/2-inch (PB-0045)
Fulton 10 inch Long Forstner Bit Extension for Adding Over 8" of Drilling Depth to Your Forstner Bit Ideal for Wood Turners Furniture Carpentry and Construction (1/2 inch Collet) - - Amazon.com