Diablo 1-1/2 In. x 6 In. SPEEDemon Spade Bit (2-Pack) - Groom & Sons' Hardware
DEWALT Drill Bit, Spade, 1-1/2 Inch x 6 Inch (DW1586) - Amazon.com
1-1/2" Spade Bit | Greenlee
Bosch Daredevil Spade Bit - Diameter 1-1/2 in.
WORKPRO 10-Piece Pro Spade Drill Bit Set- Black Coating, Premium Carbon Steel, Paddle Flat Bits for Woodworking, Assorted Bits 1/4" to 1-1/2" with Storage Case - Amazon.com
1/2” inch Wood Boring Spade Bit Irwin Speedbor Spade Bits 88808 | eBay