OSG Extension Tap: 7/16"-20 UNF, H3 / 2B-3B, 3 Flute
OSG Spiral-Point Extension Taps for Steel & Stainless Steel.
SKU 3G-OTH-313191
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
Need installation or engineering help?
Ask a question
Product Description
OSG Spiral-Point Extension Taps for Steel & Stainless Steel.
Frequently Asked Questions
What is an OSG extension tap used for?
An OSG extension tap is used to thread deep or hard-to-reach holes in steel and stainless steel. The extended shank allows access where standard taps cannot reach, making it essential for machining complex parts in automotive, aerospace, and general manufacturing.
What are the specifications of the OSG 7/16"-20 UNF extension tap?
This OSG extension tap has a 7/16"-20 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for threading steel and stainless steel. The manufacturer part number is 1765901.
Where to buy OSG extension taps worldwide?
3G Electric supplies OSG extension taps worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine OSG cutting tools and support your procurement with technical expertise across 14 departments.
How to select the correct OSG extension tap for deep hole threading?
Select an OSG extension tap based on thread size (e.g., 7/16"-20 UNF), material (steel or stainless steel), and required thread class (H3 / 2B-3B). Ensure the shank length reaches the hole depth. For best results, match the tap to your machine's speed and use proper cutting fluid.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point 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.
