Amazon.com: DEWALT Magnetic MAX IMPACT Double Ended Carbon Steel Nut Driver (2-Pack) which includes 1/4 to 5/16 and the 3/8 to 7/16 Nut Drivers for a 1/4'' Impact Driver, (DWADNDMI2) : Tools & Home Improvement
5 Pc. Bolt Biter™ Impact Nut Extractor & Driver Set