Durable Construction: Made from durable steel for long-lasting use Easy To Use: Features a comfortable grip and smooth operation for efficient use Secure Clamping: Designed with a locking mechanism for secure clamping of pipes and fittings Compact Size: Measures only 10 inches long for convenient storage and transport Trusted Brand: From a trusted brand, Alvin, known for quality tools and equipment * Designed to tighten large document binders/blueprint clamps when storing or transporting a significant number of prints in a single clamp. * To insure a secure grip of documents when hand tightening is not sufficient. * Universal fitting accommodates all major brands of clamps and binders.