OSG Spiral Point Tap: #12-28 UNF, H3 / 2B-3B, 2 Flute
SKU 3G-OTH-215501
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Frequently Asked Questions
What is the OSG Spiral Point Tap #12-28 UNF used for?
The OSG Spiral Point Tap #12-28 UNF is used for threading holes in through-hole applications in metalworking. Its spiral-point design pushes chips ahead, reducing chip clogging. It is suitable for general-purpose tapping in materials like steel, aluminum, and cast iron, commonly used in automotive and industrial manufacturing.
What are the specifications of the OSG Spiral Point Tap MPN 1214501?
The OSG Spiral Point Tap MPN 1214501 has a #12-28 UNF thread size, H3 / 2B-3B tolerance class, 2 flutes, and a bottoming chamfer. It is a general-purpose spiral-point tap designed for through-hole threading. The H3 tolerance ensures precise fit for 2B-3B class threads in production environments.
Where to buy OSG taps in worldwide?
You can source OSG taps worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We supply OSG taps like the #12-28 UNF Spiral Point Tap (MPN 1214501) and handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times.
How to select the correct OSG tap for a threading application?
To select the correct OSG tap, match the thread size (e.g., #12-28 UNF), tolerance class (H3 / 2B-3B), and chamfer type (bottoming for blind holes, spiral point for through holes) to your workpiece material and hole type. OSG taps are designed for specific applications; consult technical data for material compatibility and cutting parameters.
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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.















