Bosch DareDevil 6-Piece Spade Bit Set for $9.97, In-Store Pickup Only
Bosch DSB5006 DareDevil 6-Piece Spade Bit Set for $9.97 with in-store pickup at Home Depot only. Here is a screenshot for reference. It has a full-cone threaded tip, and contoured paddle for faster chip removal. Most places have it for about $14.