The Bordo 4G x 48 UNF Bottoming HSS Tap is a precision threading tool designed to cut full-depth internal Unified National Fine (UNF) threads — especially when working to the bottom of blind holes where minimal thread run-out is essential. Manufactured for general purpose threading applications, this bottoming tap is ideal for tradespeople and fabricators who require high accuracy and consistent performance across a range of medium tensile strength materials.
Crafted from premium High Speed Steel (HSS), this bottoming tap features a short lead (two threads) that allows thread cutting right to the base of blind holes with excellent control and finish. The 4G diameter with 48 threads per inch (TPI) UNF thread form offers superior tensile stress area and enhanced resistance to thread stripping — making it ideal for precision assemblies where fine pitch threads are required. This tap is suitable for use in aluminium, brass, plastics and other general fabrication materials, and can be used in both hand and general machine tapping operations.
Bordo is recognised for producing trade-grade cutting and threading tools backed by trusted manufacturing standards. Industrial Shed ensures fast access to this reliable professional tap so you’re equipped with the right tool for workshop or on-site threading jobs.
Product Type: HSS Tap (Bottoming)
Brand: Bordo
Thread Type: UNF (Unified National Fine)
Size: 4G x 48 TPI
Material: High Speed Steel (HSS)
Lead: Bottoming (2 threads)
Drill Diameter: 2.4 mm
Overall Length: 48 mm
Thread Form: UNF
Part Number: 3034-4GB
Application: Bottoming internal fine threading in medium tensile materials
► Key Features
‣ Standard 4G x 48 UNF fine thread form for precision applications
‣ Bottoming lead design ensures minimal thread run-out in blind holes
‣ Manufactured from durable High Speed Steel for wear resistance
‣ Suitable for hand and general machine tapping
‣ Ideal for threading 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
‣ Trusted Bordo quality tooling for dependable performance
‣ 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.
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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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For more information, visit Returns & Refunds: Straight Talk.
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