OSG Spiral Point Tap: 1/4"-28 UNF, H1 / 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, TiCN-coated high-speed steel construction, and H1 / 2B-3B thread class. It features 2 flutes and is identified by MPN…
SKU 3G-OTH-215187
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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, TiCN-coated high-speed steel construction, and H1 / 2B-3B thread class. It features 2 flutes and is identified by MPN 1220408.
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 and cast iron. Its TiCN coating reduces friction and extends tool life, making it suitable for high-speed production environments where consistent thread quality is required.
What are the specifications of the OSG 1220408 tap?
The OSG 1220408 is a 1/4-28 UNF spiral point tap with H1 / 2B-3B tolerance, 2 flutes, and a plug chamfer. It is made from TiCN coated high speed steel, designed for general purpose threading in ferrous materials.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the 1220408 to customers worldwide. We handle full logistics and customs clearance, ensuring your order arrives at your facility. Contact us for pricing and lead time on this and other OSG tooling.
How to select the correct tap for UNF threads?
For UNF threads like 1/4-28, match the tap's thread pitch and class of fit (e.g., 2B-3B) to your application. Spiral point taps are ideal for through holes, while plug chamfer suits general purpose threading. Always verify material compatibility and coating for optimal tool life.
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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.














