OSG Spiral Point Tap: 1/2"-20 UNF, H5 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Spiral Point Tap (1/2"-20 UNF) is a general-purpose spiral-point tap with an H5 / 2B-3B tolerance, plug chamfer, and 3-flute design, made from high-speed steel (MPN 1242600). 3G Electric interprets your…
SKU 3G-OTH-215841
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Product Description
The OSG Spiral Point Tap (1/2"-20 UNF) is a general-purpose spiral-point tap with an H5 / 2B-3B tolerance, plug chamfer, and 3-flute design, made from high-speed steel (MPN 1242600). 3G Electric interprets your demand for this precision threading tool, sourcing it from OSG and supporting your industrial operations across 14 departments — with specialist depth in combustion, pumps, and controls.
Frequently Asked Questions
What is the OSG spiral point tap 1/2"-20 UNF used for?
This OSG spiral point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral point design pushes chips forward, preventing chip clogging and enabling faster tapping cycles in production environments.
What are the specifications of the OSG 1242600 tap?
The OSG 1242600 is a 1/2"-20 UNF spiral point tap with H5 tolerance, suitable for 2B-3B thread classes. It has 3 flutes, a plug chamfer, and is made from high-speed steel. It is a general-purpose tap for through-hole applications.
Where to buy OSG taps in worldwide?
You can source OSG taps, including the 1242600 model, through 3G Electric. We handle global logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this and other OSG tooling.
How to select the correct OSG tap for UNF threads?
Select an OSG tap by matching the thread size (e.g., 1/2"-20 UNF), thread class (2B or 3B), and tap style (spiral point for through holes). The H5 tolerance ensures precise fit. For blind holes, consider spiral flute taps instead.
Used in
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.














