The Hobart 477521 Dough Hook is a high-quality aluminum accessory that is meant for use with 20-quart Hobart mixers. This long-lasting dough hook effectively mixes different types of dough and shortens preparation time. Thanks to its construction, the appliance can take the rigor of a commercial kitchen, bakery, or even pizzeria. https://partsfe.ca/477521-hobart-dough-hook-20-qt-spiral