Amana Tool - FO-562 Multi-Tooth High Carbon Steel Forstner Bit 2-3/8 Dia x 1/2" Shank - - Amazon.com
Freud Precision Shear™ Serrated Edge Forstner Drill Bit 3-1/2-inch (PB-0045)
Fulton 6 inch Long Forstner Bit Extension For Adding Over 5-5/8 inches of Drilling Depth To Your Forstner Bit. For Wood Turners, Furniture, Carpentry and Construction - Forstner Bit Extension - Amazon.com