G-Man, It absolutely does take both blades. The largest objection to the pinned in blades is that they takes a large hole to make interior cuts. Also, where the pin is punched through the blade creates a weak spot, so the break a little easier. Your selection of blades is very limited with pinned in blades. You will also find the better blades are not manufactured with pins. The ones in the hardware store, both pinned and plain, are pretty much the bottom of the barrel as far as blades go. Take the extra steps to get your hands on either Olson or Flying Dutchman blades. They are actually less expensive that what you get at the hardware store and are superior to all others.