Fisch FSA-196037 16pce Wave Cutter Forstner Bit Set In Custom Wooden Box, Includes bits from 1/4-Inch up to 2-1/8-Inch - Power Drill Accessories - Amazon.com
1-1/4 FORSTNER BIT
Amazon.com: IVY Classic 46152 4-Inch Forstner Bit Extension, High Carbon Steel, 1/Tube : Everything Else