OSG Spiral Flute Tap: #2-56 UNC, H2 / 2B-3B, 2 Flute
SKU 3G-OTH-230849
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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 designed for threading blind holes in ferrous and non-ferrous materials. Its spiral flute design evacuates chips upward, preventing clogging. It is commonly used in automotive, aerospace, and general manufacturing for creating internal threads in precision components.
What are the specifications of the OSG spiral flute tap #2-56 UNC?
The OSG spiral flute tap has a #2-56 UNC thread size, H2 / 2B-3B tolerance, 2 flutes, and a modified bottoming chamfer. The manufacturer part number is 2905601. It is a general purpose tap suitable for threading blind holes in various materials.
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 times on the OSG 2905601 tap.
How to select the correct OSG spiral flute tap for blind holes?
For blind holes, choose a spiral flute tap like the OSG #2-56 UNC with a modified bottoming chamfer to thread close to the hole bottom. Ensure the tap tolerance (H2 / 2B-3B) matches your required thread class. Use proper cutting fluid and speed for the workpiece material to extend tool life.
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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.












