OSG Spiral Flute Tap: 7/16"-28 UNEF, H4 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (7/16"-28 UNEF) is a spiral-flute tap for steel and stainless steel, featuring an H4 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer (MPN 1650506008).
SKU 3G-OTH-218807
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 Flute Tap (7/16"-28 UNEF) is a spiral-flute tap for steel and stainless steel, featuring an H4 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer (MPN 1650506008).
Frequently Asked Questions
What is an OSG spiral flute tap used for?
An OSG spiral flute tap is used for threading blind holes in steel and stainless steel. Its spiral design pushes chips upward and out of the hole, preventing chip clogging and ensuring clean threads. This tap is ideal for high-precision applications requiring modified bottoming chamfer geometry.
What are the specifications of the OSG 7/16"-28 UNEF spiral flute tap?
This OSG tap has a 7/16"-28 UNEF thread size, H4 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. It is designed for threading steel and stainless steel. The manufacturer part number is 1650506008.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we source genuine OSG cutting tools and support your procurement with technical expertise across 14 industrial departments.
How to select the right spiral flute tap for steel?
Select a spiral flute tap based on thread size, pitch, and material. For steel and stainless steel, choose a tap with H4 / 2B-3B tolerance for precise fit. A modified bottoming chamfer allows threading close to the hole bottom. OSG taps are engineered for chip evacuation in blind holes.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
