For Craftsman Club members, Sears offers the Craftsman 1/2" Impact Wrench, model no. 16882, for $21.99. (Not a member? It's free to sign up.) Opt for free in-store pickup to avoid the $8.25 shipping charge. That's $3 under our mention from three weeks ago and the lowest price we could find by $27. This 4.2-lb. impact wrench features up to 400 ft-lbs. of torque and 7000 rpm free speed.

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