The Bordo 1-3/4″ × 5 BSW Bottoming HSS Tap is a precision-engineered British Standard Whitworth (BSW) bottoming hand and machine tap designed for producing full-depth internal threads with minimal thread run-out in blind holes. Built to classic BSW thread specifications, this bottoming tap delivers strong, accurate threads for workshop, fabrication, maintenance and general trade applications. The traditional Whitworth thread form dates back to Sir Joseph Whitworth’s original specification and is commonly used in vintage, industrial and heavy engineering applications.
Manufactured from durable High Speed Steel (HSS), this tap features the characteristic 55° BSW thread angle with rounded thread roots and crests, ensuring strong thread engagement and excellent structural integrity. Bottoming taps have a lead of two threads and are typically used after an initial taper or intermediate tap to complete threading to the bottom of a blind hole, making this tool ideal for precision threading with minimal run-out.
Bordo is a trusted industrial tooling brand in Australia, known for delivering dependable performance and quality manufacturing. Industrial Shed ensures fast access to trusted Bordo threading tools when you need them on site or in the workshop.
Product Type: Bottoming Tap
Brand: Bordo
Diameter: 1-3/4″ (inch)
Thread Pitch: 5 TPI (BSW)
Material: High Speed Steel (HSS)
Thread Form: British Standard Whitworth (BSW, 55°)
Flute Type: Straight bottoming
Part Number: 3028-1.3/4B
Drill Diameter (recommended): ~39 mm
Overall Length (approx): ~187 mm
Application: Precision bottoming threads in blind holes for hand and general machine use
► Key Features
‣ 1-3/4″ × 5 TPI BSW bottoming thread form for British Standard Whitworth applications
‣ High Speed Steel (HSS) construction for strength, durability and wear resistance
‣ Traditional 55° BSW thread angle with rounded roots and crests for strong engagement
‣ Bottoming lead (two threads) for minimal thread run-out in blind holes
‣ Designed for both hand and general machine tapping
► Why Tradies and Contractors Buy This
‣ Ideal for completing threads to the bottom of blind holes with minimal run-out
‣ Strong, clean threads for dependable assembly fit-ups
‣ Built for everyday workshop and on-site conditions
‣ Trusted Australian industrial tooling quality
‣ 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.
Nationwide Reach, Reliable Partners: Need it shipped across Australia? We work with top couriers to offer standard and express options, so you get your order when you need it.
Track Every Step: You’ll get a tracking number the moment your order ships. No guessing—just a clear view of where your delivery’s at.
Service with a Real Human Touch: Got special delivery needs? Give us a shout. We’re here to make it happen, no fuss.
With Industrial Shed, you're not just another package in the mail. We get your order to you fast, safe, and with the reliability you expect.
For more information, visit Shipping Details: The Essentials.
At Industrial Shed, we keep things simple. If something’s not right or you’re not satisfied, we’ll sort it out—fast and easy.
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.
Clear Policies, No Surprises: We believe in being upfront. Our return and refund policy is clear, so you know exactly what’s covered—whether it’s warranty claims, special orders, or regular returns. You’ll never be left guessing.
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.
Thanks for subscribing!
This email has been registered!