OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Extension Tap (#10-24 UNC, MPN 1297200) is a spiral-flute extension tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B for thread class compatibility.
SKU 3G-OTH-310980
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Product Description
The OSG Extension Tap (#10-24 UNC, MPN 1297200) is a spiral-flute extension tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B for thread class compatibility.
Frequently Asked Questions
What is the OSG #10-24 UNC extension tap used for?
The OSG #10-24 UNC extension tap is used for threading blind holes in hard-to-reach areas of metal parts. Its 3-flute spiral design clears chips upward, making it ideal for automotive, aerospace, and general machining applications where standard taps cannot reach.
What are the specifications of the OSG 1297200 extension tap?
The OSG 1297200 is a #10-24 UNC extension tap with H3 / 2B-3B tolerance, plug chamfer, 3 flutes, and high-speed steel construction. It is designed for threading blind holes and is part of OSG's spiral-flute extension tap line.
Where to buy OSG extension taps worldwide?
You can source OSG extension taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG 1297200.
How to select the correct OSG extension tap for a job?
To select the correct OSG extension tap, match the thread size (e.g., #10-24 UNC), chamfer type (plug for blind holes), flute count, and material (high-speed steel for general use). Ensure the H3 / 2B-3B tolerance fits your required thread class. OSG taps are precision-ground for consistent performance.
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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.















