OSG Spiral Point Tap: 1/4"-28 UNF, H2 / 2B-3B, 2 Flute, Plug Chamfer
The OSG Spiral Point Tap (1/4"-28 UNF, MPN 1225405) is a general-purpose spiral-point tap with a plug chamfer, TiN-coated high-speed steel construction, and H2 / 2B-3B thread class. It features 2 flutes and is…
SKU 3G-OTH-215818
Need installation or engineering help?
Ask a question
Product Description
The OSG Spiral Point Tap (1/4"-28 UNF, MPN 1225405) is a general-purpose spiral-point tap with a plug chamfer, TiN-coated high-speed steel construction, and H2 / 2B-3B thread class. It features 2 flutes and is designed for through-hole tapping in a range of materials.
Frequently Asked Questions
What is the OSG spiral point tap 1/4"-28 UNF used for?
This OSG spiral point tap is used for threading blind or through holes in production machining. Its TiN coating reduces friction and extends tool life in steel, stainless steel, and cast iron. The plug chamfer and 2-flute design push chips forward, making it ideal for high-speed tapping operations.
What are the specifications of the OSG spiral point tap MPN 1225405?
The OSG spiral point tap MPN 1225405 has a 1/4"-28 UNF thread size, H2 / 2B-3B tolerance, 2 flutes, and a plug chamfer. It is made of TiN-coated high-speed steel. This general-purpose tap is designed for threading applications requiring precise fit and chip evacuation.
Where to buy OSG taps in worldwide?
You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG spiral point tap MPN 1225405 or other OSG tooling.
How to select the correct OSG tap for a threading application?
Select an OSG tap by matching thread size, pitch, and tolerance class (e.g., H2 / 2B-3B) to your workpiece material and hole type. For through holes, spiral point taps push chips ahead; for blind holes, spiral flute taps pull chips out. TiN coating improves wear resistance in harder materials.
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.














