OSG Spiral Flute Tap: #2-56 UNC, H2 / 2B-3B, 2 Flute
SKU 3G-OTH-230052
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Frequently Asked Questions
What is the OSG spiral flute tap #2-56 UNC used for?
The OSG spiral flute tap #2-56 UNC is used 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-hole applications common in automotive, aerospace, and general manufacturing.
What are the specifications of the OSG spiral flute tap #2-56 UNC?
The OSG spiral flute tap #2-56 UNC has a thread size of #2-56 UNC, a H2 / 2B-3B tolerance, 2 flutes, and a modified bottoming chamfer. It is a general-purpose spiral-flute tap designed for threading blind holes. The manufacturer part number is 2905600.
Where to buy OSG spiral flute taps worldwide?
You can source OSG spiral flute taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG spiral flute tap #2-56 UNC (MPN 2905600).
How to select the correct OSG spiral flute tap for blind holes?
Select an OSG spiral flute tap based on thread size, tolerance class (e.g., H2 / 2B-3B), and chamfer type. For blind holes, use a modified bottoming chamfer to thread close to the hole bottom. Ensure the tap material matches your workpiece—OSG taps suit ferrous and non-ferrous metals. Consult OSG's technical data for optimal speeds and feeds.
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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.















