OSG Extension Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Extension Tap (MPN 1295500) is a 1/2"-13 UNC spiral-point extension tap with H3 / 2B-3B tolerance, 3 flutes, plug chamfer, and high-speed steel construction. 3G Electric sources this precision threading tool…
SKU 3G-OTH-313570
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The OSG Extension Tap (MPN 1295500) is a 1/2"-13 UNC spiral-point extension tap with H3 / 2B-3B tolerance, 3 flutes, plug chamfer, and high-speed steel construction. 3G Electric sources this precision threading tool as part of our industrial supply across 14 departments, with specialist expertise in combustion, pumps, and controls ensuring accurate sourcing and support.
Frequently Asked Questions
What is the OSG Extension Tap 1/2"-13 UNC used for?
This OSG extension tap is used for threading blind or through holes in metal parts where a standard tap cannot reach. It is common in automotive, aerospace, and general manufacturing for creating internal UNC threads with a plug chamfer and spiral-point design.
What are the specifications of the OSG Extension Tap MPN 1295500?
The OSG Extension Tap has a 1/2"-13 UNC thread size, H3 / 2B-3B tolerance, 3-flute spiral-point design, and plug chamfer. It is made of high-speed steel (HSS) and is suitable for through-hole threading in steel and other materials.
Where to buy the OSG Extension Tap 1/2"-13 UNC worldwide?
You can source the OSG Extension Tap MPN 1295500 worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine OSG tooling globally.
How to select the correct OSG extension tap for a job?
Select an OSG extension tap based on thread size (e.g., 1/2"-13 UNC), material (HSS for general steel), chamfer type (plug for through holes), and flute count (3-flute for chip evacuation). Match the H3 / 2B-3B tolerance to your required thread class.
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.
