No real tools, but a technique. Start with the groove side towards the wall, proceed across the room nailing tongues thru grooves at an angle or with a floor nailer. When you get to the last one or possibly two rows, rip the bottom leg off the groove. Add a little wood glue and use some face nails at about 4' on center just past the groove. If you get too close it will split off. Face nail the last board where the base will cover them. Even on prefinished flooring, the face nails really don't show that much if they're sunk and filled.