Sears.com has a Craftsman 4.8 volt Impact Power Driver for $9.99 with Free instore pickup.
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- Cordless 4.8 volt power driver. Forward and reversing. High torque/high speed unit fits into the palm of your hand. No more stripping screws – impact action will allow tool to clutch out before screws strip. 2 position handle. 175 in.lbs of torque. 1,800 rpm speed. Quick connect bit tip holder allows for easy set up whatever the application