OSG Spiral Point Tap: 1/4"-28 UNF, 3B, 3 Flute, Plug Chamfer
SKU 3G-OTH-215804
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Frequently Asked Questions
What is the OSG spiral point tap 1/4"-28 UNF used for?
This OSG spiral point tap is designed for through-hole threading in steel, stainless steel, and non-ferrous materials. Its 3-flute design pushes chips forward, reducing clogging and breakage. It is commonly used in automotive, aerospace, and general machining applications requiring UNF threads.
What are the specifications of the OSG 2880701 tap?
The OSG 2880701 is a 1/4"-28 UNF spiral point tap with a 3B thread class, 3 flutes, plug chamfer, and black oxide high-speed steel construction. It is designed for through-hole threading and provides good wear resistance and chip evacuation in production environments.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the 2880701 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial sourcing partner, we provide genuine OSG cutting tools with competitive lead times and technical support for your threading applications.
How to select the right spiral point tap for UNF threads?
For UNF threads like 1/4"-28, choose a spiral point tap for through holes to push chips ahead. Match the thread class (e.g., 3B for tight tolerance), flute count (3 for general use), and coating (black oxide for steel). Ensure tap drill size matches the minor diameter for proper thread engagement.
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Common applications for OSGOSG Products
3G Electric supplies OSG general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















