OSG Spiral Flute Tap: 3/8"-16 UNC, H2 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (3/8"-16 UNC, MPN 2931500) is a general-purpose spiral-flute tap with an H2 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. This tool is designed for threading applications…
SKU 3G-OTH-230812
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Product Description
The OSG Spiral Flute Tap (3/8"-16 UNC, MPN 2931500) is a general-purpose spiral-flute tap with an H2 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. This tool is designed for threading applications requiring precise internal threads in through or blind holes.
Frequently Asked Questions
What is an OSG spiral flute tap used for?
An OSG spiral flute tap is used for threading blind holes in materials like steel and aluminum. Its spiral design pushes chips upward, preventing clogging and ensuring clean threads. This 3/8"-16 UNC tap with a modified bottoming chamfer is ideal for general-purpose threading in manufacturing and maintenance applications.
What are the specifications of the OSG 2931500 tap?
The OSG 2931500 is a spiral flute tap with a 3/8"-16 UNC thread, H2 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. It is designed for general-purpose threading in blind holes, providing chip evacuation and thread accuracy. OSG is a trusted brand in cutting tools.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide, including the 2931500 spiral flute tap. We handle full logistics and customs clearance to deliver to global destinations. Contact us for availability and lead times; we source genuine industrial equipment across 14 departments to meet your threading needs.
How to select the right spiral flute tap for blind holes?
Select a spiral flute tap like the OSG 2931500 for blind holes to ensure chips are evacuated upward. Match thread size (e.g., 3/8"-16 UNC), chamfer type (modified bottoming for near-bottom threads), and material compatibility. OSG taps are precision-ground for consistent performance in steel and aluminum.
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Common applications for OSGOSG Products
3G Electric supplies OSG general purpose spiral-flute taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















