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High Carbon Steel Rethreading Die Set

21987 is an 8 piece set in plastic case that includes the following: rethreading dies for sizes 1/4″ NF, 5/16″ NF, 3/8″ NF, 7/16″ NF, 1/2″ NC, 9/16″ NF, 5/8″ NF and 3/4″ NF threads

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Item #Description
219878 piece rethreading die set in plastic case