OSG Spiral Flute Tap: #3-48 UNC, H2 / 2B-3B, 2 Flute
SKU 3G-OTH-230867
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Frequently Asked Questions
What is the OSG Spiral Flute Tap #3-48 UNC used for?
The OSG Spiral Flute Tap #3-48 UNC is designed for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in general-purpose machining, automotive, and aerospace applications where precise internal threading is required.
What are the specifications of the OSG Spiral Flute Tap #3-48 UNC?
The OSG Spiral Flute Tap has a #3-48 UNC thread size, H2 / 2B-3B tolerance class, 2 flutes, and a modified bottoming chamfer. The manufacturer part number is 2906000. It is designed for general-purpose threading in blind holes, providing chip evacuation and thread accuracy.
Where to buy the OSG Spiral Flute Tap #3-48 UNC worldwide?
You can source the OSG Spiral Flute Tap #3-48 UNC worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine OSG taps to customers across industries.
How to select the correct OSG Spiral Flute Tap for blind holes?
Select an OSG spiral flute tap with a modified bottoming chamfer for blind holes, as it allows threading close to the hole bottom. Ensure the thread size (e.g., #3-48 UNC) and tolerance class (H2 / 2B-3B) match your application. Use proper cutting fluid and machine speed per OSG recommendations for optimal thread quality and tool life.
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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.















