OSG Spiral Point Tap: 1/4"-28 UNF, 2B+, 2 Flute, Plug Chamfer
The OSG Spiral Point Tap (1/4"-28 UNF, MPN 1590201) is an oversized spiral-point tap with a 2B+ tolerance, 2-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets this…
SKU 3G-OTH-251269
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Product Description
The OSG Spiral Point Tap (1/4"-28 UNF, MPN 1590201) is an oversized spiral-point tap with a 2B+ tolerance, 2-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets this demand and sources the genuine OSG product, supporting your threading operations across 14 industrial departments with specialist depth in cutting tools.
Frequently Asked Questions
What is the OSG Spiral Point Tap 1590201 used for?
The OSG Spiral Point Tap 1590201 is used for threading through-holes in metal, particularly in production environments. Its spiral-point design pushes chips forward, reducing clogging. The oversized 2B+ tolerance allows for controlled thread fit in applications requiring extra clearance, such as after plating or coating.
What are the specifications of the OSG Spiral Point Tap 1590201?
The OSG Spiral Point Tap 1590201 has a thread size of 1/4"-28 UNF, a 2B+ tolerance class, 2 flutes, and a plug chamfer. It is made from black oxide high-speed steel (HSS). The oversized 2B+ design provides a slightly larger thread for applications needing additional clearance.
Where to buy the OSG Spiral Point Tap 1590201 worldwide?
You can source the OSG Spiral Point Tap 1590201 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we source and deliver this OSG tap to your location.
How to select the correct OSG Spiral Point Tap for through-hole threading?
For through-hole threading, select a spiral-point tap like the OSG 1590201 to push chips forward. Match the thread size (1/4"-28 UNF) and chamfer type (plug) to your hole depth. The 2B+ oversized tolerance is ideal for applications requiring a looser fit, such as after coating. Always verify material compatibility with HSS taps.
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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.















