OSG Spiral Flute Tap: #12-28 UNF, H3 / 2B-3B, 3 Flute
The OSG Spiral Flute Tap (#12-28 UNF, MPN 2923808) is a general-purpose spiral-flute tap with an H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets demand and sources this…
SKU 3G-OTH-230700
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Product Description
The OSG Spiral Flute Tap (#12-28 UNF, MPN 2923808) is a general-purpose spiral-flute tap with an H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. 3G Electric interprets demand and sources this genuine OSG cutting tool across 14 industrial departments — with specialist depth in combustion, pumps, and controls as an authorised distributor.
Frequently Asked Questions
What is an OSG spiral flute tap used for?
An OSG spiral flute tap is used for threading blind holes in materials like steel and aluminum. Its spiral design pushes chips upward, preventing clogging and ensuring clean threads. This #12-28 UNF tap with a modified bottoming chamfer is ideal for general-purpose threading in manufacturing and maintenance applications.
What are the specifications of the OSG #12-28 UNF spiral flute tap?
This OSG tap has a #12-28 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. It is designed for general-purpose threading in blind holes. The H3 tolerance ensures precise fit for 2B-3B class threads, suitable for industrial machining and repair work.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps like the #12-28 UNF spiral flute tap to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we source genuine OSG cutting tools and support your procurement with technical expertise across 14 departments.
How to select the correct OSG tap for blind holes?
For blind holes, choose a spiral flute tap like this OSG #12-28 UNF model to evacuate chips upward. Match the thread size (UNF), tolerance (H3 / 2B-3B), and chamfer type (modified bottoming) to your material and depth requirements. Consult OSG's technical data or contact 3G Electric for application guidance.
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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.
