OSG Spiral Flute Tap: 1/2"-20 UNF, H7 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (1/2"-20 UNF, MPN 2942900) is a general-purpose spiral-flute tap with an H7 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this…
SKU 3G-OTH-231190
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Product Description
The OSG Spiral Flute Tap (1/2"-20 UNF, MPN 2942900) is a general-purpose spiral-flute tap with an H7 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets your demand for this precision threading tool, sources it from OSG, and supports your application with specialist expertise across 14 industrial departments.
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 1/2"-20 UNF tap with modified bottoming chamfer is ideal for general-purpose machining where thread depth is critical.
What are the specifications of the OSG 1/2"-20 UNF spiral flute tap?
This OSG tap has a 1/2"-20 UNF thread size, H7 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. It is designed for blind hole threading and produces threads to Class 2B or 3B fit. The manufacturer part number is 2942900.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide, including this 1/2"-20 UNF spiral flute tap. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this and other OSG threading tools.
How to select the right OSG tap for blind holes?
For blind holes, choose a spiral flute tap like this OSG 1/2"-20 UNF model. The spiral flutes evacuate chips upward, preventing breakage. Ensure the chamfer type (modified bottoming) matches your thread depth requirements. Always match tap tolerance (H7 / 2B-3B) to your application's fit class.
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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.
