OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer
The OSG Extension Tap (MPN 1290201) is a 1/4"-20 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets demand and delivers…
SKU 3G-OTH-308198
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Product Description
The OSG Extension Tap (MPN 1290201) is a 1/4"-20 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets demand and delivers this genuine industrial cutting tool across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.
Frequently Asked Questions
What is the OSG Extension Tap 1290201 used for?
The OSG Extension Tap 1290201 is a pulley tap designed for threading blind holes in pulleys and other hard-to-reach areas. Its extended length allows access to deep or recessed threads. It is commonly used in automotive, industrial machinery, and general manufacturing applications where standard taps cannot reach.
What are the specifications of the OSG Extension Tap 1290201?
The OSG Extension Tap 1290201 has a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, 4 flute design, and plug chamfer. It is made from black oxide high-speed steel for durability and chip evacuation. The manufacturer part number is 1290201.
Where to buy the OSG Extension Tap 1290201 worldwide?
You can source the OSG Extension Tap 1290201 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this pulley tap.
How to select the correct OSG Extension Tap for threading?
To select the correct OSG Extension Tap, match the thread size (e.g., 1/4"-20 UNC), tolerance class (H3 / 2B-3B), and chamfer type (plug) to your application. For deep or blind holes, choose an extension tap with sufficient length. Always verify material compatibility with high-speed steel for optimal performance.
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Common applications for OSGOSG Products
3G Electric supplies OSG pulley taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
