OSG 1/4"-20 UNC Spiral-Flute Extension Tap
The OSG Extension Tap (SKU 1297800, MPN 1297800) is a 1/4"-20 UNC spiral-flute extension tap, type H3 / 2B-3B with a plug chamfer, made of high-speed steel and featuring 3 flutes. 3G Electric sources this genuine OSG…
SKU 3G-OTH-310956
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Product Description
The OSG Extension Tap (SKU 1297800, MPN 1297800) is a 1/4"-20 UNC spiral-flute extension tap, type H3 / 2B-3B with a plug chamfer, made of high-speed steel and featuring 3 flutes. 3G Electric sources this genuine OSG tool for machining applications, backed by our specialist expertise across 14 industrial departments.
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 deep holes in metalworking applications. Its extended reach and spiral-flute design efficiently evacuate chips, making it ideal for automotive, aerospace, and general manufacturing where standard taps cannot reach.
What are the specifications of the OSG Extension Tap MPN 1297800?
This OSG Extension Tap has a 1/4"-20 UNC thread size, H3 / 2B-3B tolerance, 3-flute design, and plug chamfer. It is made of high-speed steel (HSS) and is designed for threading blind holes. The manufacturer part number is 1297800.
Where to buy the OSG Extension Tap 1297800 worldwide?
You can source the OSG Extension Tap 1297800 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive genuine OSG tooling for your operations.
How to select the correct OSG extension tap for a job?
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 material and hole depth. For blind holes, a spiral-flute design like this OSG tap aids chip evacuation. Consult OSG technical data for optimal performance.
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3G Electric supplies OSG spiral-flute extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.