OSG 5/16"-18 UNC Pulley Tap, H3 / 2B-3B, Plug Chamfer, Black Oxide HSS, 4 Flute
The OSG Extension Tap (MPN 1290401) is a 5/16"-18 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. This tool is designed for threading…
SKU 3G-OTH-308153
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Product Description
The OSG Extension Tap (MPN 1290401) is a 5/16"-18 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. This tool is designed for threading applications requiring extended reach.
Frequently Asked Questions
What is the OSG Extension Tap 1290401 used for?
The OSG Extension Tap 1290401 is used for threading blind or deep holes in industrial applications, particularly for pulley assemblies. Its extended reach allows access to recessed areas, and the 5/16"-18 UNC thread size suits standard fasteners in automotive and machinery maintenance.
What are the specifications of the OSG Extension Tap 1290401?
The OSG Extension Tap 1290401 has a 5/16"-18 UNC thread, H3 / 2B-3B tolerance, 4 flute design, and plug chamfer. It is made of black oxide high-speed steel for durability. The manufacturer part number is 1290401, and it is classified as a pulley tap for extended-reach threading.
Where to buy the OSG Extension Tap 1290401 worldwide?
You can source the OSG Extension Tap 1290401 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; we provide reliable sourcing for this OSG pulley tap.
How to select the correct OSG extension tap for a job?
To select the correct OSG extension tap, match the thread size (e.g., 5/16"-18 UNC) and tolerance (H3 / 2B-3B) to your hole requirements. Consider the tap's reach for deep or blind holes, and choose a plug chamfer for general threading. OSG's black oxide high-speed steel offers good wear resistance for manual or machine use.
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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.
