OSG Spiral Point Tap: 1/4"-28 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer
The OSG Spiral Point Tap (1/4"-28 UNF) is a general-purpose spiral-point tap with a plug chamfer, made from high-speed steel. It features an H3 / 2B-3B tolerance and a 2-flute design (MPN 1230400).
SKU 3G-OTH-215828
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Product Description
The OSG Spiral Point Tap (1/4"-28 UNF) is a general-purpose spiral-point tap with a plug chamfer, made from high-speed steel. It features an H3 / 2B-3B tolerance and a 2-flute design (MPN 1230400).
Frequently Asked Questions
What is an OSG spiral point tap used for?
An OSG spiral point tap is used for through-hole threading in metalworking. Its spiral point design pushes chips ahead, preventing clogging and enabling faster, cleaner threads in production environments across machining, automotive, and general manufacturing.
What are the specifications of the OSG 1/4"-28 UNF spiral point tap?
This OSG tap is 1/4"-28 UNF, H3 / 2B-3B class of fit, with 2 flutes and a plug chamfer. It is made of high-speed steel (HSS) and is designed for general-purpose threading in steel, aluminum, and other common materials.
Where to buy OSG taps in worldwide?
3G Electric supplies and delivers OSG taps worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives at your facility, wherever it is located.
How to select the right OSG tap for a job?
Select an OSG tap based on thread size (e.g., 1/4"-28 UNF), material being threaded, and hole type. For through holes, a spiral point tap like this one is ideal. Match the class of fit (H3 / 2B-3B) to your tolerance requirements.
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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.















