OSG #10-32 UNF Spiral-Flute Extension Tap
The OSG Extension Tap (#10-32 UNF, MPN 1297400) is a spiral-flute extension tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B for thread class. 3G Electric sources this…
SKU 3G-OTH-310958
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
The OSG Extension Tap (#10-32 UNF, MPN 1297400) is a spiral-flute extension tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B for thread class. 3G Electric sources this genuine OSG tool across 14 industrial departments, with specialist expertise in cutting tools and precision threading.
Frequently Asked Questions
What is an OSG extension tap used for?
An OSG extension tap is used to cut internal threads in deep or hard-to-reach holes. The #10-32 UNF size with plug chamfer and 3-flute design is ideal for through-hole or blind-hole threading in steel, aluminum, and other metals across machining, automotive, and general manufacturing applications.
What are the specifications of the OSG #10-32 UNF extension tap?
This OSG extension tap has a #10-32 UNF thread size, H3 / 2B-3B tolerance, plug chamfer, 3 flutes, and is made of high-speed steel. The manufacturer part number is 1297400. It is designed for deep-hole tapping where standard taps cannot reach.
Where to buy OSG extension taps worldwide?
3G Electric supplies OSG extension taps worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine OSG taps like the #10-32 UNF model 1297400 to customers in machining, automotive, and other sectors. Contact us for availability and delivery to your location.
How to select the right OSG extension tap for deep-hole threading?
Select an OSG extension tap based on thread size (e.g., #10-32 UNF), material (high-speed steel for general use), flute count (3-flute for balanced chip evacuation), and chamfer type (plug for blind holes). Ensure the tap length reaches the required depth. Consult OSG's technical data for specific material recommendations.
Used in
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.