UNF and UNC Tap Set perfect for use on AF vehicles and machinery. Tap & Die – 1/4″ UNF x28. Tap & Die – 5/16″ UNF x24. Tap & Die – 3/8″ UNF x24. Tap & Die – 7/16″ UNF x20. Tap & Die – 1/2″ UNF x20. Tap & Die – 1/4″ UNC x20.
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