OSG Extension Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Extension Tap (MPN 1299000) is a 1/2"-13 UNC spiral-flute extension tap with a plug chamfer, made from high-speed steel. It features an H3 / 2B-3B tolerance class and a 3-flute design, suitable for threading…
SKU 3G-OTH-310963
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Product Description
The OSG Extension Tap (MPN 1299000) is a 1/2"-13 UNC spiral-flute extension tap with a plug chamfer, made from high-speed steel. It features an H3 / 2B-3B tolerance class and a 3-flute design, suitable for threading applications requiring extended reach.
Frequently Asked Questions
What is the OSG Extension Tap 1/2"-13 UNC used for?
The OSG Extension Tap is used for threading blind or deep holes in metalworking applications. Its extended reach allows tapping in hard-to-access areas, common in automotive, aerospace, and general manufacturing. The 3-flute spiral design aids chip evacuation, while the plug chamfer provides a versatile entry for through or blind holes.
What are the specifications of the OSG Extension Tap 1/2"-13 UNC?
This OSG tap has a 1/2"-13 UNC thread size with an H3 / 2B-3B tolerance class. It features 3 flutes, a plug chamfer, and is made from high-speed steel. The manufacturer part number is 1299000. It is designed for threading steel and other materials where extended reach is required.
Where to buy the OSG Extension Tap 1/2"-13 UNC worldwide?
You can source the OSG Extension Tap 1/2"-13 UNC worldwide through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine OSG tooling for international orders.
How to select the correct OSG extension tap for a job?
To select the correct OSG extension tap, match the thread size (e.g., 1/2"-13 UNC) and tolerance class (H3 / 2B-3B) to your hole requirements. Consider material type and hole depth—the extended length reaches deep or obstructed areas. For blind holes, a plug chamfer is suitable. Always verify the tap's flute count and coating for chip evacuation.
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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.
