OSG Spiral Flute Tap: 1/4"-20 UNC, H7 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (1/4"-20 UNC, MPN 2940201) is a general-purpose spiral-flute tap with an H7 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. This tool is designed for threading applications…
SKU 3G-OTH-230117
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Product Description
The OSG Spiral Flute Tap (1/4"-20 UNC, MPN 2940201) is a general-purpose spiral-flute tap with an H7 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. This tool is designed for threading applications requiring precise chip evacuation and thread accuracy.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the OSG spiral flute tap 2940201 used for?
The OSG spiral flute tap 2940201 is designed for threading blind holes in general-purpose materials. Its spiral flute design lifts chips upward, preventing clogging, making it ideal for production tapping in steel, aluminum, and cast iron. The modified bottoming chamfer allows threading close to the hole bottom.
What are the specifications of the OSG 2940201 tap?
The OSG 2940201 is a 1/4"-20 UNC spiral flute tap with 3 flutes and a modified bottoming chamfer. It has an H7 / 2B-3B tolerance class, ensuring precise thread fit. This general-purpose tap is suitable for blind hole applications and is manufactured by OSG under part number 2940201.
Where to buy OSG taps in worldwide?
You can source OSG taps, including the 2940201, 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 times; we supply genuine OSG cutting tools for your threading needs.
How to select the correct OSG tap for blind holes?
For blind holes, choose a spiral flute tap like the OSG 2940201 to evacuate chips upward. Ensure the tap size matches your thread specification (e.g., 1/4"-20 UNC) and tolerance class (H7 / 2B-3B). Use a modified bottoming chamfer for threads near the hole bottom. Always follow OSG's recommended speeds and feeds for material type.
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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.















