OSG Extension Tap: 1/2"-13 UNC, H3 / 2B-3B, 3 Flute
SKU 3G-OTH-313176
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Frequently Asked Questions
What is the OSG Extension Tap 1765501 used for?
The OSG Extension Tap 1765501 is used for threading blind or deep holes in steel and stainless steel. Its spiral-point design pushes chips forward, reducing clogging. The 1/2"-13 UNC size and H3 / 2B-3B tolerance make it suitable for precision threading in industrial manufacturing and maintenance applications.
What are the specifications of the OSG Extension Tap 1765501?
The OSG Extension Tap 1765501 has a 1/2"-13 UNC thread size, H3 / 2B-3B tolerance, 3-flute design, and plug chamfer. It is a spiral-point extension tap for steel and stainless steel. The manufacturer part number is 1765501. These specs ensure accurate threading in deep or blind holes.
Where to buy the OSG Extension Tap 1765501 worldwide?
You can source the OSG Extension Tap 1765501 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time. We supply genuine OSG taps for industrial applications.
How to select the correct OSG extension tap for steel?
Select an OSG extension tap based on thread size, material, and hole depth. For steel and stainless steel, use a spiral-point design like the 1765501. Match the UNC thread size (1/2"-13) and tolerance (H3 / 2B-3B) to your application. Ensure the tap length reaches the required depth without overhang.
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Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point extension taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















