Locking Tie tool solves the problem of not being able to get stainless locking ties tight.An effective tool to tighten any Stainless Steel Locking Tie. Saves time and hassle while providing a professional looking result. Positive Locking Ties are perfect for securing wrap to pipes with it's self-locking design. Locking Ties offer many other uses including bundling wires, hoses, and other forms of insulation products. Just insert tie end into locking mechanism, slide the tool on the end of any 1/4" nut driver, engage the tie and twist to tighten.