The Bosch T-Handle tap wrench is used to securely hold taps to be turned by hand. It features adjustable wrench jaws that are self-equalizing. A spring tension holds the T-Handle in place. The self-centering hardened steel jaws provide a positive grip. The wrench is designed to ensure easy starting, and it is ideal to promote accurate threading. Made from heat-treated carbon steel, this is a rust- and tarnish-resistant tool.