OSG Extension Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer
The OSG Extension Tap (5/8"-11 UNC, MPN 1299200) is a spiral-flute extension tap with H3 / 2B-3B tolerance, 4 flutes, plug chamfer, and high-speed steel construction. 3G Electric interprets demand and delivers this…
SKU 3G-OTH-310964
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Product Description
The OSG Extension Tap (5/8"-11 UNC, MPN 1299200) is a spiral-flute extension tap with H3 / 2B-3B tolerance, 4 flutes, plug chamfer, and high-speed steel construction. 3G Electric interprets demand and delivers this genuine industrial cutting tool across 14 departments — with specialist depth in combustion, pumps, and controls as a trust anchor — ensuring you get the right answer, not just a catalog.
Frequently Asked Questions
What is an OSG extension tap used for?
An OSG extension tap is used to cut internal threads in hard-to-reach or deep-hole applications. The extended shank allows threading in recessed areas, blind holes, or where standard taps cannot reach. It is common in automotive, aerospace, and general machining for UNC threads.
What are the specifications of the OSG 5/8"-11 UNC extension tap?
This OSG extension tap has a 5/8"-11 UNC thread, H3 / 2B-3B tolerance, 4 flutes, plug chamfer, and is made of high-speed steel. The manufacturer part number is 1299200. It is designed for threading steel, cast iron, and non-ferrous materials in deep or obstructed locations.
Where to buy OSG extension taps worldwide?
3G Electric supplies OSG extension taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial sourcing partner, we provide genuine OSG cutting tools like the 5/8"-11 UNC extension tap (MPN 1299200) for demanding threading applications.
How to select the right OSG extension tap for deep-hole threading?
Select an OSG extension tap based on thread size, material, and reach required. For deep holes, choose a tap with sufficient shank length and a plug chamfer for general-purpose threading. Ensure the H3 tolerance matches your desired thread class (2B or 3B). Consult OSG's technical data for material-specific speeds and feeds.
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
