Sears offers the Craftsman 5/16" Nut Driver
, model no. 41972, for $5.94
. Plus, Shop Your Way Max members bag free shipping
. (Not a member? It's free to sign up for a 90-day trial
; otherwise, shipping adds $5.99.) That's a buck off and the lowest total price we could find. It features an alloy steel socket and shaft. Deal ends October 31.