OSG Spiral Point Tap: 1/4"-28 UNF, 2B+, 2 Flute, Plug Chamfer
The OSG Spiral Point Tap (1/4"-28 UNF, MPN 1590208) is an oversized spiral-point tap with a 2B+ thread class, 2-flute design, plug chamfer, and TiCN-coated high-speed steel construction. 3G Electric interprets…
SKU 3G-OTH-251210
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Product Description
The OSG Spiral Point Tap (1/4"-28 UNF, MPN 1590208) is an oversized spiral-point tap with a 2B+ thread class, 2-flute design, plug chamfer, and TiCN-coated high-speed steel construction. 3G Electric interprets customer demand and delivers this genuine industrial cutting tool across 14 departments — with specialist depth in combustion, pumps, and controls as a trust anchor — ensuring you get the right solution, not just a catalog.
Frequently Asked Questions
What is an OSG spiral point tap used for?
An OSG spiral point tap is designed for through-hole threading in production machining. Its spiral-point geometry pushes chips ahead, preventing chip clogging and enabling faster tapping cycles in materials like steel and aluminum.
What are the specifications of the OSG 1/4"-28 UNF spiral point tap?
This OSG tap has a 1/4"-28 UNF thread, 2B+ tolerance, 2 flutes, plug chamfer, and TiCN-coated high-speed steel. The 2B+ oversize class provides tighter fit for critical applications. Manufacturer part number is 1590208.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine OSG cutting tools like the 1590208 spiral point tap to any destination. Contact us for availability and delivery.
How to select the right OSG tap for a threading application?
Select tap type based on hole configuration: spiral point for through holes, spiral flute for blind holes. Match thread size (e.g., 1/4"-28 UNF), tolerance class (2B+ for oversize), coating (TiCN for abrasive materials), and chamfer (plug for general use) to your material and depth.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG oversized spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















