OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer
The OSG Extension Tap (#10-24 UNC, MPN 1297100) is a spiral-flute extension tap with a bottoming chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B for thread class compatibility. 3G…
SKU 3G-OTH-310975
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 (#10-24 UNC, MPN 1297100) is a spiral-flute extension tap with a bottoming chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B for thread class compatibility. 3G Electric sources this genuine OSG tool across 14 industrial departments, with specialist expertise in cutting tools and precision threading solutions.
Frequently Asked Questions
What is an OSG extension tap used for?
An OSG extension tap is used to cut internal threads in hard-to-reach or deep-hole applications. The #10-24 UNC size with bottoming chamfer allows threading to the bottom of a blind hole. It is commonly used in machining, automotive, and general manufacturing where standard taps cannot reach.
What are the specifications of the OSG #10-24 UNC extension tap?
This OSG extension tap is #10-24 UNC, H3 / 2B-3B class, with 3 flutes, bottoming chamfer, and made of high-speed steel. The H3 / 2B-3B designation indicates a precision-ground thread form suitable for both 2B and 3B tolerance classes. Manufacturer part number is 1297100.
Where to buy OSG extension taps worldwide?
3G Electric supplies OSG extension taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial sourcing partner, we provide genuine OSG cutting tools like the #10-24 UNC extension tap (MPN 1297100) to customers across multiple industries.
How to select the correct OSG extension tap for a job?
Select an OSG extension tap based on thread size (e.g., #10-24 UNC), chamfer type (bottoming for blind holes), flute count (3-flute for chip evacuation), and material (high-speed steel for general use). Match the H3 / 2B-3B tolerance to your required thread fit. For deep or offset holes, choose the appropriate extension length.
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
