That Daily Deal offers the Olympia Tools Power Grip 10" Nut Wrench, model no. 01-151, for $12.99. Coupon code "POWERWRENCH" cuts it to $11.95 with free shipping. That's the lowest total price we could find by $9, outside of the price below. This self-adjusting wrench features hardened and tempered jaws.
A close price: Life and Home charges $8.15 plus $3.99 for shipping.