OSG Spiral Flute Tap: 1/4"-28 UNF, H2 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (1/4"-28 UNF, MPN 2930301) is a general-purpose spiral-flute tap with an H2 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets demand and sources this…
SKU 3G-OTH-230995
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Product Description
The OSG Spiral Flute Tap (1/4"-28 UNF, MPN 2930301) is a general-purpose spiral-flute tap with an H2 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets demand and sources this genuine industrial cutting tool across 14 departments — with specialist depth in combustion, pumps, and controls — ensuring you get the right answer, not just a catalog.
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 1/4-28 UNF used for?
This OSG spiral flute tap is designed for threading blind holes in materials such as steel and stainless steel. Its modified bottoming chamfer allows threading close to the bottom of the hole, while the spiral flute design efficiently evacuates chips upward, reducing the risk of tap breakage.
What are the specifications of the OSG tap 2930301?
The OSG tap 2930301 is a 1/4-28 UNF spiral flute tap with 3 flutes, a modified bottoming chamfer, and a thread tolerance of H2 / 2B-3B. It is a general-purpose tap suitable for producing threads in blind holes, with a 1/4-inch nominal diameter and 28 threads per inch.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the 2930301 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this spiral flute tap, and we will source it for your industrial threading application.
How to select the correct OSG tap for blind holes?
For blind holes, choose a spiral flute tap like this OSG 1/4-28 UNF model, which pushes chips upward and out of the hole. Ensure the chamfer type matches your depth requirement—modified bottoming chamfer allows threading close to the hole bottom. Always match the tap tolerance (H2 / 2B-3B) to your desired thread class.
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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.















