Home Depot offers the Bosch DareDevil 10-Piece Spade Bit Set
, model no. DSB5010, for $14.97
. Opt for in-store pickup
to dodge the $5.99 shipping charge. That's the lowest price we could find shipped by $9. They feature a patented Daredevil paddle design which purports to generate 10 times faster drilling than standard spade bits and a 1/4" hex power groove shank.