OSG Extension Tap: 1/4"-28 UNF, H4 / 2B-3B, 2 Flute
OSG Spiral-Flute Extension Taps for Multiple Materials.
SKU 3G-OTH-311762
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
OSG Spiral-Flute Extension Taps for Multiple Materials.
Frequently Asked Questions
What is the OSG Extension Tap 1/4"-28 UNF used for?
This OSG extension tap is designed for threading blind or deep holes in multiple materials. Its spiral-flute design evacuates chips upward, making it ideal for production tapping in steel, aluminum, and cast iron. The modified bottoming chamfer allows threading close to the hole bottom.
What are the specifications of the OSG Extension Tap 1/4"-28 UNF?
The OSG extension tap has a 1/4"-28 UNF thread size, H4 / 2B-3B tolerance, 2-flute spiral-flute design, and a modified bottoming chamfer. The manufacturer part number is 1652501908. It is designed for threading multiple materials in deep or blind-hole applications.
Where to buy the OSG Extension Tap 1/4"-28 UNF worldwide?
3G Electric supplies the OSG Extension Tap 1/4"-28 UNF worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver this OSG tap to any country.
How to select the correct OSG extension tap for threading?
Select the OSG extension tap based on thread size (1/4"-28 UNF), hole depth, and material. For blind holes, use a modified bottoming chamfer. The H4 / 2B-3B tolerance ensures proper fit. Match the tap flute design (spiral-flute) to chip evacuation needs. OSG taps are precision-ground for consistent performance.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute extension taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
