The Bordo 1" x 12 UNF Bottoming HSS Tap is a precision threading tool engineered for cutting full-depth internal Unified National Fine (UNF) threads — especially in blind holes where minimal thread run-out is essential. Designed for general-purpose trade, workshop, and fabrication applications, this bottoming tap delivers accurate and reliable performance across a range of medium tensile materials.
Manufactured from high speed steel (HSS), this bottoming tap features a short lead-in (two threads), allowing you to thread right to the bottom of a blind hole with excellent control and thread quality. The fine pitch UNF thread form (1" diameter with 12 threads per inch) offers increased tensile stress area and improved resistance to stripping compared with coarse threads — ideal for precision assemblies or when wall thickness demands a fine pitch. Suitable for both hand and general machine tapping operations, this tap provides dependable performance for demanding threading tasks.
Bordo is a trusted name in industrial cutting and threading tools, known for quality manufacturing and dependable performance. Industrial Shed brings you fast access to this professional-grade bottoming tap so you’re equipped with the right tool whether you’re working on site or in the workshop.
Product Type: HSS Tap (Bottoming)
Brand: Bordo
Thread Type: UNF (Unified National Fine)
Size: 1" x 12 TPI
Material: High Speed Steel (HSS)
Lead: Bottoming (2 threads lead)
Drill Diameter: 23.5 mm
Overall Length: 120 mm
Thread Form: UNF
Part Number: 3034-1B
Application: Bottoming internal fine threading in medium tensile materials
► Key Features
‣ Standard 1" x 12 UNF fine thread form for precision applications
‣ Bottoming lead design ensures minimal thread run-out in blind holes
‣ High Speed Steel (HSS) construction for wear resistance and durability
‣ Suitable for hand and general machine tapping
‣ Ideal for threading steel, aluminium, brass, plastics and similar materials
► Why Tradies and Contractors Buy This
‣ Ensures accurate, full-depth fine threads in blind hole applications
‣ Durable HSS construction stands up to frequent workshop use
‣ Fine UNF thread offers enhanced tensile stress area and resistance to stripping
‣ Professional quality tap trusted for precision metalworking
‣ Backed by Industrial Shed’s fast dispatch and trade support
► Stock won’t last — get yours now at Industrial Shed!
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