HomeDepot.com drops the price of this Total Wrench Smart Wrench System from $19.99 to $5. This set is designed to replace 24 different wrenches with just three tools. With free shipping, this is the best deal we could find on this, and $15 less than we could find for a full 24 piece wrench set. These wrenches can fit four different sizes on each end, making them versatile and space saving. Note: availability varies based on zip code, and some areas may have them on backorder. Sales tax is charged in most states.