I recently needed to remove several panels of particle board subflooring while preparing to install a hardwood floor. These panels were fastened with a gazillion ring-shanked nails, driven in by an overly enthusiastic pneumatic nail-gun operator. After much sweat and frustration with a conventional assortment of hammer claws, cat paws, and pry bars, I finally came across the magic tool. It’s the Japanese manufactured SharkGrip Nail Puller. The tool very efficiently gets underneath the offending nail head and will even latch onto the nail’s shank should the head shear off. It’s available in various sizes and configurations.