OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer
SKU 3G-OTH-313611
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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 locations where a standard tap cannot reach, such as in engine blocks or deep bores. It is designed for #10-24 UNC threads in materials like steel and aluminum.
What are the specifications of the OSG #10-24 UNC extension tap?
This OSG extension tap is #10-24 UNC with a H3 / 2B-3B thread limit, 2-flute design, plug chamfer, and made from high-speed steel. The manufacturer part number is 1294600. It is a spiral-point extension tap for through-hole threading in deep or obstructed locations.
Where to buy OSG extension taps worldwide?
3G Electric supplies OSG extension taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine OSG cutting tools to your facility. Contact us for availability and lead time on the #10-24 UNC extension tap (MPN 1294600).
How to select the right OSG extension tap for deep-hole threading?
Select an OSG extension tap based on thread size, pitch, and reach required. For #10-24 UNC threads in deep holes, choose a plug chamfer for general-purpose threading. Ensure the tap's H3 / 2B-3B tolerance matches your desired thread class. Use proper cutting fluid and alignment to prevent breakage.
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















