OSG 7/16"-14 UNC Pulley Tap, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide HSS
The OSG Extension Tap (MPN 1291401) is a 7/16"-14 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets this demand and…
SKU 3G-OTH-308135
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The OSG Extension Tap (MPN 1291401) is a 7/16"-14 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets this demand and sources the genuine OSG product, supporting your threading operations across 14 industrial departments with specialist depth in cutting tools.
Frequently Asked Questions
What is the OSG Extension Tap 1291401 used for?
The OSG Extension Tap 1291401 is a pulley tap designed for threading blind holes or hard-to-reach areas in industrial applications. Its extended length allows access to recessed threads, commonly used in automotive, machinery, and metalworking for creating UNC threads in steel or cast iron.
What are the specifications of the OSG Extension Tap 1291401?
The OSG Extension Tap 1291401 has a 7/16"-14 UNC thread size, H3 / 2B-3B tolerance, 4 flute design, and plug chamfer. It is made from black oxide high-speed steel (HSS) for durability and chip evacuation. The manufacturer part number is 1291401.
Where to buy the OSG Extension Tap 1291401 worldwide?
You can source the OSG Extension Tap 1291401 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 OSG 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., 7/16"-14 UNC), tolerance class (H3 / 2B-3B), and chamfer type (plug) to your application. Ensure the tap length reaches the thread depth. For blind holes, use a plug or bottoming chamfer. Consult OSG's technical data for material compatibility.
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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.
