OSG Spiral Point Tap: 3/8"-16 UNC, 2B+, 3 Flute, Plug Chamfer
The OSG Spiral Point Tap (3/8"-16 UNC, MPN 1591608) is an oversized spiral-point tap with a 2B+ tolerance, 3-flute design, plug chamfer, and TiCN-coated high-speed steel construction. This tool is engineered for…
SKU 3G-OTH-251193
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Product Description
The OSG Spiral Point Tap (3/8"-16 UNC, MPN 1591608) is an oversized spiral-point tap with a 2B+ tolerance, 3-flute design, plug chamfer, and TiCN-coated high-speed steel construction. This tool is engineered for through-hole threading applications requiring precise thread formation.
Frequently Asked Questions
What is the OSG Spiral Point Tap 1591608 used for?
The OSG Spiral Point Tap 1591608 is used for threading blind or through holes in metal. Its spiral-point design pushes chips forward, making it ideal for high-speed production tapping in automotive, aerospace, and general manufacturing. The TiCN coating extends tool life on steel and cast iron.
What are the specifications of the OSG Spiral Point Tap 1591608?
This OSG tap has a 3/8"-16 UNC thread size, 2B+ class of fit, 3 flutes, and a plug chamfer. It is made from high-speed steel with a TiCN coating. The manufacturer part number is 1591608. The 2B+ tolerance provides a slightly oversized thread for controlled fit in plated or coated holes.
Where to buy the OSG Spiral Point Tap 1591608 worldwide?
You can source the OSG Spiral Point Tap 1591608 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 supply this tap to manufacturing facilities internationally.
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"-16 UNC), class of fit (2B+ for oversized threads), material (high-speed steel with TiCN coating for steel), and chamfer type (plug for general through-hole tapping). Match the tap to your hole depth and machine speed for optimal thread quality.
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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.















