For sales is a lot of  assorted UNF and UNC hand taps.

sizes included (both UNC and UNF): 1", 7/8", 3/4", 5/8", 1/2", 7/16", 3/8", 5/16", 1/4", NO.10, 8, 6, ETC, ETC.

various working conditions, please see the pictures.