OSG Spiral Point Tap: 3/8"-24 UNF, 2B+, 3 Flute, Plug Chamfer
The OSG Spiral Point Tap (3/8"-24 UNF, MPN 1591801) is an oversized spiral-point tap with a 2B+ tolerance, 3-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets customer…
SKU 3G-OTH-251201
Need installation or engineering help?
Ask a question
Product Description
The OSG Spiral Point Tap (3/8"-24 UNF, MPN 1591801) is an oversized spiral-point tap with a 2B+ tolerance, 3-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets customer demand and delivers genuine industrial equipment across 14 departments — and far more — with specialist depth in combustion, pumps, and controls as an authorised distributor for brands including OSG, Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump, and FBR.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the OSG Spiral Point Tap 1591801 used for?
The OSG Spiral Point Tap 1591801 is used for threading through-holes in metal, particularly in production environments. Its spiral-point design pushes chips forward, reducing clogging. The 3/8"-24 UNF size and 2B+ tolerance suit precision threading in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG Spiral Point Tap 1591801?
This OSG tap has a 3/8"-24 UNF thread size, 2B+ class of fit, 3 flutes, plug chamfer, and black oxide high-speed steel construction. The MPN is 1591801. It is an oversized spiral-point tap designed for through-hole threading in ferrous materials.
Where to buy the OSG Spiral Point Tap 1591801 worldwide?
You can source the OSG Spiral Point Tap 1591801 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 on this precision threading tool.
How to select the correct OSG Spiral Point Tap for a job?
Select the OSG Spiral Point Tap based on thread size (e.g., 3/8"-24 UNF), material (black oxide HSS for steel), and tolerance class (2B+ for tighter fit). For through-holes, spiral-point taps are ideal. Always match the tap to the hole type and material hardness for optimal thread quality.
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.















