OSG Extension Tap: #10-32 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer
SKU 3G-OTH-310967
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Frequently Asked Questions
What is an OSG extension tap used for?
An OSG extension tap is used to cut internal threads in hard-to-reach or deep-hole applications. The #10-32 UNF size with plug chamfer and spiral-flute design is ideal for through-hole threading in metalworking, automotive, and general manufacturing where standard taps cannot reach.
What are the specifications of the OSG #10-32 UNF extension tap?
This OSG extension tap is #10-32 UNF thread size, H3 / 2B-3B fit, 3-flute, plug chamfer, made of high-speed steel. The spiral-flute design aids chip evacuation in deep-hole tapping. Manufacturer part number is 1297600.
Where to buy OSG extension taps worldwide?
3G Electric supplies OSG extension taps worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the #10-32 UNF spiral-flute tap (MPN 1297600) and other OSG tooling.
How to select the correct OSG extension tap for deep-hole threading?
Select an OSG extension tap based on thread size (e.g., #10-32 UNF), chamfer type (plug for through-holes), flute design (spiral for chip evacuation), and reach length. Ensure the tap's H3 tolerance matches your required thread class (2B-3B). Consult OSG's technical data for material-specific speeds.
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Common applications for OSGOSG Products
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.















