ToolSmithDirect via eBay offers the Kawasaki 12-volt DC Impact Wrench Set
, model no. 841337, for $39.99
with free shipping
. It's the lowest total price we could find now by $4, although we saw it for $2 less last March. Powered by a 12-volt DC socket, it features 280-foot lbs. of torque, two double-end sockets, and a carry case.