AutoUS via Amazon offers the Tacklife 20-Piece Power Nut Driver Bit Set for $11.97. Coupon code "8HYP9PRE" cuts that to $7.90. Plus, Prime members bag free shipping. That's a buck under our mention from three weeks ago, $4 off list, and the lowest price we could find. It includes a variety of SAE and metric steel bits, each with a 1/4" hex shank. Deal ends May 19.