OSG Extension Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Extension Tap (7/16"-14 UNC, MPN 1295400) is a spiral-point extension tap with a plug chamfer, made from high-speed steel. It features an H3 / 2B-3B tolerance class and 3 flutes, designed for threading…
SKU 3G-OTH-313552
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 (7/16"-14 UNC, MPN 1295400) is a spiral-point extension tap with a plug chamfer, made from high-speed steel. It features an H3 / 2B-3B tolerance class and 3 flutes, designed for threading applications requiring extended reach.
Frequently Asked Questions
What is the OSG Extension Tap 7/16"-14 UNC used for?
This OSG extension tap is used for threading blind or through holes in metal parts where a standard tap cannot reach. It is common in automotive, aerospace, and general machining for creating 7/16"-14 UNC threads with a plug chamfer and 3-flute spiral-point design.
What are the specifications of the OSG Extension Tap 1295400?
The OSG Extension Tap (MPN 1295400) has a 7/16"-14 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, plug chamfer, and is made of high-speed steel. It is a spiral-point extension tap designed for through-hole threading in harder materials.
Where to buy the OSG Extension Tap 1295400 worldwide?
You can source the OSG Extension Tap 1295400 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.
How to select the correct OSG extension tap for a job?
Select an OSG extension tap based on thread size (e.g., 7/16"-14 UNC), tolerance class (H3 / 2B-3B), flute count, chamfer type, and material. For deep or hard-to-reach holes, choose a spiral-point design with plug chamfer. Always match the tap to the workpiece material and hole type.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
