Black & Decker via eBay offers the Black & Decker Quick Connect 30-Piece Set
, model no. 71-973, for $17.99
with free shipping
. That's the lowest total price we could find by $2. This set is compatible with all 3/8" and 1/2" cordless and corded drills and includes a Quick Connect adapter, case, eight screwdriving tips, and 21 drilling/driving tips.