OSG Spiral Point Tap: 1/4"-28 UNF, H3 / 2B-3B, 3 Flute
SKU 3G-OTH-272852
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Frequently Asked Questions
What is an OSG spiral point tap used for?
An OSG spiral point tap is designed for through-hole threading in aluminum and non-ferrous materials. Its spiral point pushes chips forward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general machining applications where high-speed production and thread accuracy are critical.
What are the specifications of the OSG 1/4"-28 UNF spiral point tap?
This OSG tap has a 1/4"-28 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is designed for aluminum and non-ferrous materials. The H3 tolerance ensures precise thread fit for 2B-3B class holes, making it suitable for high-accuracy tapping operations.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source genuine OSG cutting tools like the 1/4"-28 UNF spiral point tap. Contact us for pricing and delivery to your location, with lead time on request.
How to select the right spiral point tap for aluminum?
For aluminum, choose a spiral point tap with a plug chamfer and H3 tolerance, like the OSG 1/4"-28 UNF. Ensure the tap matches your thread size and hole type (through-hole). Use proper cutting fluid and speed to prevent chip buildup. OSG taps are engineered for consistent performance in non-ferrous materials.
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point taps for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















