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OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer - Spiral-Flute Extension Taps
OSGSpiral-Flute Extension Taps

OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer

The OSG Extension Tap (#8-32 UNC, MPN 1296600) is a spiral-flute extension tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B for thread class compatibility.

SKU 3G-OTH-310970

Brand
OSG
Item
Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer
Category
Spiral-Flute Extension Taps
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Technical Specifications

OSG
Manufacturer Part Number
1296600
Type
H3 / 2B-3B, Plug Chamfer, High Speed Steel
Flute
3
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Extension Tap (#8-32 UNC, MPN 1296600) is a spiral-flute extension tap with a plug chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B for thread class compatibility.

Frequently Asked Questions

What is the OSG Extension Tap #8-32 UNC used for?

The OSG Extension Tap #8-32 UNC is used for threading blind holes in hard-to-reach areas, such as deep bores or recessed surfaces. Its spiral-flute design evacuates chips upward, preventing clogging. Common applications include automotive, aerospace, and general machining where extended reach is required.

What are the specifications of the OSG Extension Tap #8-32 UNC?

The OSG Extension Tap #8-32 UNC has a thread size of #8-32 UNC, with a tolerance of H3 for the tap and 2B-3B for the thread class. It features 3 flutes, a plug chamfer, and is made from high-speed steel. The manufacturer part number is 1296600, and the SKU is 33XR27.

Where to buy the OSG Extension Tap #8-32 UNC worldwide?

You can source the OSG Extension Tap #8-32 UNC 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; we provide competitive pricing and reliable sourcing for this OSG tap.

How to select the correct OSG Extension Tap for a job?

To select the correct OSG Extension Tap, match the thread size (e.g., #8-32 UNC) and tolerance (H3 for the tap, 2B-3B for the thread) to your application. Consider the material being tapped—high-speed steel suits general-purpose use. For blind holes, a spiral-flute design with plug chamfer is ideal. Verify reach length and machine compatibility.

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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