OSG Spiral Flute Tap: 1/4"-20 UNC, 2B, 3 Flute, Bottoming Chamfer
The OSG Spiral Flute Tap (1/4"-20 UNC, MPN 2985601) is a general-purpose tap with a 2B thread class, bottoming chamfer, and black oxide high-speed steel construction. It features 3 flutes for efficient chip…
SKU 3G-OTH-229879
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Product Description
The OSG Spiral Flute Tap (1/4"-20 UNC, MPN 2985601) is a general-purpose tap with a 2B thread class, bottoming chamfer, and black oxide high-speed steel construction. It features 3 flutes for efficient chip evacuation in through-hole threading applications.
Frequently Asked Questions
What is the OSG spiral flute tap 2985601 used for?
The OSG spiral flute tap 2985601 is used for threading blind holes in materials like steel and aluminum. Its spiral flute design evacuates chips upward, preventing clogging. The bottoming chamfer allows threading close to the hole bottom. It is common in automotive and general manufacturing applications.
What are the specifications of the OSG 2985601 tap?
The OSG 2985601 is a 1/4"-20 UNC spiral flute tap with a 2B thread class, 3 flutes, and a bottoming chamfer. It is made from black oxide high speed steel. This general purpose tap is designed for blind hole threading and is manufactured by OSG.
Where to buy OSG taps in worldwide?
You can source OSG 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 2985601 spiral flute tap.
How to select the right OSG tap for blind holes?
For blind holes, choose a spiral flute tap like the OSG 2985601 to evacuate chips upward. Ensure the tap size matches your thread specification (e.g., 1/4"-20 UNC) and chamfer type (bottoming for threads near hole bottom). Use proper cutting fluid and follow OSG's speed/feed recommendations for best results.
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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.















