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OSG Extension Tap: #6-32 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer - Spiral-Flute Extension Taps
OSGSpiral-Flute Extension Taps

OSG Extension Tap: #6-32 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer

SKU 3G-OTH-310972

Brand
OSG
Item
Extension Tap: #6-32 UNC, H3 / 2B-3B, 2 Flute, Plug Chamfer
Category
Spiral-Flute Extension Taps
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Technical Specifications

OSG
Manufacturer Part Number
1296200
Type
H3 / 2B-3B, Plug Chamfer, High Speed Steel
Flute
2
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Technical Documents

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

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 extended reach allows threading in recessed areas, blind holes, or where standard taps cannot access, common in automotive, aerospace, and general machining.

What are the specifications of the OSG #6-32 UNC extension tap?

This OSG extension tap is #6-32 UNC, H3 / 2B-3B thread class, with 2 flutes, plug chamfer, and high-speed steel construction. The H3 / 2B-3B designation indicates a precision-ground thread form for consistent fit in both 2B and 3B tolerance classes.

Where to buy OSG extension taps worldwide?

3G Electric supplies OSG extension taps worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine OSG taps like the #6-32 UNC model (MPN 1296200) to customers across 14 industrial departments, including machining and tooling.

How to select the correct OSG extension tap for a job?

Select an OSG extension tap by matching thread size (e.g., #6-32 UNC), thread class (H3 / 2B-3B), flute count, and chamfer type to your material and hole depth. For deep or blind holes, choose a plug chamfer and sufficient extension length. Consult OSG's technical data for material-specific speeds and feeds.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG 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.

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