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
Steel Large Diameter Spade Bit Set, 4 Piece
Flat Wood Bit 24mm x 152mm - Screwfix
BlueNatHxRPR 5 PCS 1" to 1-1/2" Wood Spade Drill Bit Set Wood Paddle Flat Bits - Amazon.com