OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer
The OSG Extension Tap (MPN 1295000) is a 1/4"-20 UNC spiral-point extension tap with a plug chamfer, made from high-speed steel. It features an H3 / 2B-3B tolerance class and a 2-flute design, suitable for threading…
SKU 3G-OTH-313537
Need installation or engineering help?
Ask a question
Product Description
The OSG Extension Tap (MPN 1295000) is a 1/4"-20 UNC spiral-point extension tap with a plug chamfer, made from high-speed steel. It features an H3 / 2B-3B tolerance class and a 2-flute design, suitable for threading applications requiring extended reach.
Frequently Asked Questions
What is the OSG Extension Tap 1/4"-20 UNC used for?
The OSG Extension Tap is used for threading blind or through holes in hard-to-reach areas. Its extended length allows access to recessed surfaces, making it ideal for automotive, aerospace, and general machining applications where standard taps cannot reach.
What are the specifications of the OSG Extension Tap 1/4"-20 UNC?
This OSG tap has a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, 2-flute design, and plug chamfer. It is made of high-speed steel (HSS) and features a spiral-point geometry for efficient chip evacuation. The manufacturer part number is 1295000.
Where to buy the OSG Extension Tap 1/4"-20 UNC worldwide?
3G Electric supplies the OSG Extension Tap 1/4"-20 UNC worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to select the correct OSG Extension Tap for threading?
Select the OSG Extension Tap based on thread size (e.g., 1/4"-20 UNC), material (HSS for general use), chamfer type (plug for most applications), and tolerance class (H3 for 2B-3B fit). Ensure the tap length reaches the hole depth without overloading the tool.
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.
