OSG Extension Tap: 1/2"-13 UNC, H5 / 2B-3B, 3 Flute
SKU 3G-OTH-311715
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Frequently Asked Questions
What is an OSG extension tap used for?
An OSG extension tap is used for threading blind holes or hard-to-reach areas in multiple materials. Its extended reach and spiral-flute design efficiently evacuate chips, making it ideal for maintenance, repair, and production applications across machining and industrial departments.
What are the specifications of the OSG 1/2"-13 UNC extension tap?
This OSG extension tap has a 1/2"-13 UNC thread size, H5 tolerance for 2B-3B fit, 3 flutes, and a modified bottoming chamfer. The manufacturer part number is 1652503308. It is designed for threading multiple materials in confined spaces.
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 taps to support your threading needs across 14 industrial departments, including machining and maintenance.
How to select the right OSG extension tap for a job?
To select the right OSG extension tap, match the thread size (e.g., 1/2"-13 UNC), chamfer type (modified bottoming for blind holes), and flute count (3 flutes for chip evacuation) to your material and hole depth. Consult OSG's technical data for optimal speeds and feeds.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-flute extension taps for multiple materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
