1/4 To 1/2 UNC HSS 5 PC Die Set • Available in HSS and Carbon Steel • Various set configurations in UNC, UNF, BSW and BSF thread styles List Number TA18921 Substrate HSS Surface Treatment Bright Package Quantity 1 Includes UNC 1/4, 5/16, 3/8, 7/16, 1/2 Case Type Plastic SKU: TA18921 Category: Die Sets Related products 1/4 To 1/2, BSF CARBON 5 PC Die Set Item #: TA18811 1/4 To 1″ BSW CARBON 7 PC Die Set Item #: TA18803 1/4 To 1″ UNF CARBON 7 PC Die Set Item #: TA18833