This unique spring-powered tool delivers up to 3,500 lbs of striking force. It is designed to countersink nails without the use of a hammer, making it ideal to finish trim, molding and casing nails. This tool operates with precision and accuracy. Simply place it on the work surface, pull back the spring, and release, eliminating the risk of mis-hits and glancing blows. Made in the USA and backed by a full lifetime warranty.