OSG Spiral Flute Tap: #4-40 UNC, H3 / 2B-3B, 3 Flute
SKU 3G-OTH-230603
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Frequently Asked Questions
What is the OSG spiral flute tap #4-40 UNC used for?
The OSG spiral flute tap #4-40 UNC is designed for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design evacuates chips upward, preventing clogging and enabling clean threads in deep or blind applications. It is commonly used in automotive, aerospace, and general manufacturing.
What are the specifications of the OSG spiral flute tap #4-40 UNC?
The OSG spiral flute tap #4-40 UNC has a thread size of #4-40 UNC, a H3 / 2B-3B tolerance class, 3 flutes, and a modified bottoming chamfer. The manufacturer part number is 2911400. It is a general purpose spiral-flute tap suitable for threading blind holes in various materials.
Where to buy OSG spiral flute tap #4-40 UNC worldwide?
You can source the OSG spiral flute tap #4-40 UNC (MPN 2911400) 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 on this OSG tap.
How to select the correct OSG spiral flute tap for blind holes?
For blind holes, choose a spiral flute tap like the OSG #4-40 UNC with a modified bottoming chamfer. This design pushes chips upward, preventing packing at the hole bottom. Ensure the tap's tolerance class (e.g., H3 / 2B-3B) matches your thread class requirement. Always use proper cutting fluid for the 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.
