Fables relating to the usefulness of sawing nails. This is a limited resource. I tried it out on a variable-speed angle grinder and promptly met my demise. He can be had for a maximum of $400. Only use it when you really can't do it any other way. Useful in situations where only a grinder or renovator can reach, such as when trimming a newly installed floor. Or when nailing or self-tapping screws into a plywood or OSB wall could potentially damage the circle.