The Bordo 7/8" x 9 UNC Bottoming HSS Tap is a precision threading tool engineered to create full-depth internal threads to the Unified National Coarse (UNC) standard. Designed for both hand and general machine use, this bottoming tap ensures reliable, accurate threads — especially in blind hole applications where maximum thread engagement is required.
Manufactured from high speed steel (HSS), this thread-cutting tap features a bottoming flute design with a reduced lead of two threads, providing minimal thread run-out and complete thread formation right to the bottom of blind holes. With a 7/8" major diameter and 9 threads per inch (TPI), it’s ideal for standard coarse-thread fasteners used across metal fabrication, maintenance, engineering and industrial applications. The robust HSS construction delivers durability and wear resistance for dependable performance in materials such as aluminium, brass, bronze and plastics.
Bordo is recognised across Australia for quality tooling and consistent manufacturing standards. Industrial Shed gives you fast access to these trusted trade-grade threading taps for efficient and accurate workshop and on-site work.
Product Type: Bottoming Tap
Brand: Bordo
Thread Size: 7/8" x 9 UNC
Material: High Speed Steel (HSS)
Thread Form: UNC (Unified National Coarse)
Lead: Bottoming (2 threads lead)
TPI (Threads per Inch): 9
Drill Diameter (mm): 19.5 mm
Overall Length (mm): 118 mm
Part Number: 3032-7/8B
Application: Full-depth threading in metals, plastics & workshop materials
► Key Features
‣ 7/8" x 9 UNC bottoming thread form for full engagement and minimal run-out
‣ High Speed Steel construction for strength, durability & wear resistance
‣ Bottoming flute design with two threads lead for blind hole threading
‣ Suitable for hand and general machine tapping
‣ Ideal for threading aluminium, brass, bronze & plastics
► Why Tradies and Contractors Buy This
‣ Ensures complete thread depth in blind hole applications
‣ Reliable performance for workshop and site threading
‣ Durable HSS build for extended tool life
‣ Versatile across a range of materials and applications
‣ Backed by Industrial Shed’s fast dispatch and trade support
► Stock won’t last — get yours now at Industrial Shed!
At Industrial Shed, we know you need your gear fast and without the runaround. Here’s what makes our shipping better:
Local Delivery, Done In-House: If you're on the Mornington Peninsula, we handle delivery ourselves—no middlemen, no delays. Get your tools the same day or next day, straight from our team to your door.
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For more information, visit Shipping Details: The Essentials.
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What Sets Us Apart?
Fast Turnaround: We don’t mess around. When you need to return an item, we process it quickly so you’re not left waiting. Our goal is to get your refund or exchange sorted fast so you can get back to work.
Local Touch: For customers on the Mornington Peninsula, we offer the added benefit of in-store returns for quicker resolution. No shipping hassles—just bring it back to us, and we’ll handle the rest.
No-Nonsense Support: We make returns and refunds straightforward. If there’s a problem, you won’t be stuck in endless back-and-forths. We’re hands-on and get it sorted with minimal hassle.
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Built for Tradies: We understand the demands of the job, so we’re all about making returns and refunds simple, quick, and no fuss—because downtime is the last thing you need.
For more information, visit Returns & Refunds: Straight Talk.
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