OSG Spiral Point Tap: 1/2"-20 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Spiral Point Tap (1/2"-20 UNF) is a spiral-point tap for steel and stainless steel, featuring a H3 / 2B-3B tolerance, plug chamfer, V coated powdered metal construction, and 3 flutes (MPN 1758508).
SKU 3G-OTH-224453
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 Spiral Point Tap (1/2"-20 UNF) is a spiral-point tap for steel and stainless steel, featuring a H3 / 2B-3B tolerance, plug chamfer, V coated powdered metal construction, and 3 flutes (MPN 1758508).
Frequently Asked Questions
What is the OSG Spiral Point Tap 1/2"-20 UNF used for?
The OSG Spiral Point Tap is designed for threading blind or through holes in steel and stainless steel. Its spiral-point geometry pushes chips ahead, reducing clogging. The V-coated powdered metal construction provides wear resistance for production tapping. It is commonly used in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG Spiral Point Tap 1/2"-20 UNF?
This tap has a 1/2"-20 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is made of V-coated powdered metal (MPN 1758508). The H3 ground thread limit ensures precise fit for class 2B or 3B holes. It is designed for steel and stainless steel workpieces.
Where to buy the OSG Spiral Point Tap 1/2"-20 UNF worldwide?
You can source the OSG Spiral Point Tap 1/2"-20 UNF (MPN 1758508) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time. We supply genuine OSG tooling for production environments.
How to select the correct OSG Spiral Point Tap for steel?
Select based on thread size, pitch, and hole type. For blind holes in steel, a spiral-point tap pushes chips forward. The H3 / 2B-3B tolerance suits general-purpose threading. Use a plug chamfer for most applications. OSG's V-coated powdered metal taps offer extended tool life in stainless and alloy steels. Match tap to material hardness.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
