OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer
The OSG Extension Tap (#8-32 UNC, MPN 1294400) is a spiral-point extension tap with a plug chamfer, made from high-speed steel. It features 2 flutes and is rated H3 / 2B-3B for thread class compatibility.
SKU 3G-OTH-313624
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The OSG Extension Tap (#8-32 UNC, MPN 1294400) is a spiral-point extension tap with a plug chamfer, made from high-speed steel. It features 2 flutes and is rated H3 / 2B-3B for thread class compatibility.
Frequently Asked Questions
What is the OSG Extension Tap #8-32 UNC used for?
The OSG Extension Tap #8-32 UNC is used for threading blind or deep holes in metal parts where standard taps cannot reach. It is common in automotive, aerospace, and general machining applications requiring precise internal threads in hard-to-access locations.
What are the specifications of the OSG Extension Tap #8-32 UNC?
This OSG extension tap has a #8-32 UNC thread size, H3 / 2B-3B tolerance, 2-flute design, and plug chamfer. It is made from high-speed steel (HSS) and is designed for threading in steel, aluminum, and other machinable alloys. The manufacturer part number is 1294400.
Where to buy OSG Extension Tap #8-32 UNC worldwide?
You can source the OSG Extension Tap #8-32 UNC (MPN 1294400) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine OSG tooling for your machining operations.
How to select the correct OSG extension tap for a job?
To select the correct OSG extension tap, match the thread size (e.g., #8-32 UNC), chamfer type (plug for blind holes), and flute count (2-flute for chip clearance) to your material and hole depth. Ensure the H3 / 2B-3B tolerance fits your thread class requirement. Consult OSG's technical data for optimal speeds and feeds.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
