OSG 1/4-28 UNF Spiral-Flute Extension Tap for Steel & Stainless Steel
OSG Spiral-Flute Extension Taps for Steel & Stainless Steel.
SKU 3G-OTH-315311
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
OSG Spiral-Flute Extension Taps for Steel & Stainless Steel.
Frequently Asked Questions
What is the OSG extension tap 1/4-28 UNF used for?
The OSG extension tap is used for threading blind holes in steel and stainless steel. Its spiral-flute design evacuates chips upward, preventing clogging, while the modified bottoming chamfer allows threading close to the hole bottom. It is ideal for automotive, aerospace, and general manufacturing applications requiring precise UNF threads.
What are the specifications of the OSG extension tap MPN 1768301?
The OSG extension tap MPN 1768301 has a 1/4-28 UNF thread size, H3 / 2B-3B tolerance, and a 3-flute modified bottoming chamfer. It is designed for steel and stainless steel. The H3 pitch diameter tolerance ensures precise fit for 2B or 3B class threads. OSG is the OEM brand for this tool.
Where to buy OSG extension taps worldwide?
You can source OSG extension taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. 3G Electric supplies genuine OSG cutting tools for international buyers.
How to select the correct OSG extension tap for stainless steel?
Select an OSG extension tap with spiral flutes and a modified bottoming chamfer for stainless steel. Ensure the thread size matches your application, such as 1/4-28 UNF. The H3 tolerance suits 2B or 3B thread classes. Use proper cutting fluid and rigid tapping equipment to prevent breakage and extend tool life.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute extension taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.