OSG Spiral Point Tap: 1/4"-20 UNC, H7 / 2B-3B, 3 Flute
SKU 3G-OTH-215809
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Frequently Asked Questions
What is the OSG spiral point tap used for?
The OSG spiral point tap is designed for through-hole threading in metalworking. Its 3-flute, plug chamfer design pushes chips forward, making it ideal for high-speed production tapping in steel, aluminum, and cast iron across automotive, aerospace, and general manufacturing.
What are the specifications of the OSG 1/4"-20 UNC spiral point tap?
This OSG tap has a 1/4"-20 UNC thread size, H7 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is a general-purpose spiral-point tap for through-hole applications, with manufacturer part number 2854800 and SKU 33YC70.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the 1/4"-20 UNC spiral point tap to worldwide customers. We handle full logistics, customs clearance, and delivery, ensuring you receive genuine OSG cutting tools for your industrial threading needs.
How to select the right OSG tap for through-hole threading?
For through-hole threading, choose a spiral point tap like this OSG 1/4"-20 UNC model. Ensure the tap matches your thread size, tolerance (H7 / 2B-3B), and material. Use proper cutting fluid and speed to extend tool life and achieve clean threads.
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Common applications for OSGOSG Products
3G Electric supplies OSG general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















