OSG Extension Tap: 1/2"-20 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Extension Tap (1/2"-20 UNF) is a spiral-point extension tap for multiple materials, featuring an H5 / 2B-3B tolerance, plug chamfer, V coated powdered metal construction, and 3 flutes (MPN 1653503908). 3G…
SKU 3G-OTH-402452
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 (1/2"-20 UNF) is a spiral-point extension tap for multiple materials, featuring an H5 / 2B-3B tolerance, plug chamfer, V coated powdered metal construction, and 3 flutes (MPN 1653503908). 3G Electric interprets this demand and sources the genuine OSG tool, backed by our specialist expertise across 14 industrial departments — including machining — and our trusted support for combustion, pumps, and controls.
Frequently Asked Questions
What is the OSG extension tap 1/2"-20 UNF used for?
This OSG extension tap is designed for threading blind or deep holes in multiple materials. Its spiral-point design pushes chips forward, making it suitable for production tapping in steel, stainless steel, and aluminum. The V coating reduces friction and extends tool life.
What are the specifications of the OSG extension tap 1/2"-20 UNF?
This OSG tap has a 1/2"-20 UNF thread size, H5 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is made of V coated powdered metal with manufacturer part number 1653503908. The extension design allows access to recessed areas.
Where to buy the OSG extension tap 1/2"-20 UNF worldwide?
3G Electric supplies the OSG extension tap 1/2"-20 UNF worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source genuine OSG tooling for industrial applications globally.
How to select the correct OSG extension tap for threading?
Select based on thread size, pitch, and material. For 1/2"-20 UNF threads in steel or aluminum, this OSG tap with H5 tolerance and V coating is suitable. Ensure the extension length matches your hole depth. Use proper tapping speed and lubrication for best results.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point extension taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
