TLSV-134 Tools - Brass Plain Rim Ventilators, Size 3/4, 1 gross (PER BOX)

One piece construction for added strength. Used as breathers for mattresses, cushions, and plastic slipcovers. Ventilators are solid brass. These can be set also using Osborne Hand press Item #BMPM. Brass Plain rim ventilators. Diameter of hole when set is 9/16". 2 sizes available.