Amazon offers Prime members the DeWalt FlexTorq 35-Piece Impact Driver Bit Set for $23.35 with free shipping. Excluding the mention below, that's the lowest price we could find by $9, although we saw it for pennies less in November. This screw driving set includes a selection of socket adapters, setters, and bits.

A close price: Lowe's has it for $24.99 with free in-store pickup