Home Depot offers the Milwaukee 40-Piece Shockwave Impact Duty Steel Driver Bit Set, model no. 48-32-4008, for $12.47. Opt for in-store pickup to avoid the $5.99 shipping fee. That's $8 under our October mention and the lowest price we've seen. (It's the best deal today by $25.) It features custom alloy 76 steel construction, optimized shock zone geometry, and a carrying case with pull latch.