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HSS Tap UNF Inter-1/4x28
HSS Tap UNF Intermediate – 1/4 x 28
This high-speed steel (HSS) intermediate tap, also known as a second tap, is manufactured for producing precise internal threads to the Unified National Fine (UNF) standard, sized 1/4" x 28 TPI (threads per inch). With a medium lead-in taper, it balances cutting ease with accuracy, making it suitable for both through holes and blind holes. Typically, it is used after a taper tap and before a bottoming tap in a complete set.
Key Features:
Size: 1/4" UNF (28 TPI)
Type: Intermediate (Second) tap – versatile for general-purpose threading
Material: High-Speed Steel (HSS) for durability, hardness, and long service life
Thread Standard: Unified National Fine (UNF) – commonly used in automotive, aerospace, and precision fastening applications requiring fine threads
Applications: Ideal for repair, maintenance, fabrication, and workshop use
Strong, reliable, and precise, this intermediate tap ensures smooth cutting performance and consistent, accurate threads in a wide variety of materials.
