OSG Spiral Flute Tap: 1/2"-20 UNF, H3 / 2B-3B, 3 Flute
SKU 3G-OTH-229936
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Frequently Asked Questions
What is the OSG spiral flute tap 1/2"-20 UNF used for?
This OSG spiral flute tap is designed for threading blind holes in ferrous and non-ferrous materials. The spiral flute design evacuates chips upward, making it ideal for bottoming chamfer applications where chip clearance is critical. It is commonly used in automotive, aerospace, and general manufacturing.
What are the specifications of the OSG spiral flute tap 1/2"-20 UNF?
This OSG tap has a 1/2"-20 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. The manufacturer part number is 1432505. It is a general purpose spiral-flute tap suitable for threading blind holes in various materials.
Where to buy OSG spiral flute tap 1/2"-20 UNF worldwide?
You can source the OSG spiral flute tap 1/2"-20 UNF (MPN 1432505) 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.
How to select the correct OSG spiral flute tap for blind holes?
For blind holes, choose a spiral flute tap with a bottoming chamfer, like this OSG 1/2"-20 UNF model. The spiral flutes pull chips out of the hole, preventing clogging. Ensure the tap tolerance (H3 / 2B-3B) matches your thread class requirement. Always use proper cutting fluid for the workpiece material.
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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.



