As a possible pricing mistake, at Amazon, buy two select Porter-Cable power tools and get 50% off your purchase. (See this discount at checkout.) Plus, Prime members bag free shipping on all orders. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping starts around $13.) That beats yesterday's mention (which which was buy one, get one of equal or lesser value free) and the best flat discount we've seen on power tools from Amazon. Some exclusions apply. Deal ends September 30.

Note: Discount applies only to products shipped and sold by Amazon. Make sure Amazon is selected as your vendor before you add to cart.