We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

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

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

The OSG Extension Tap (#8-32 UNC, MPN 1296900) is a spiral-flute extension tap with a bottoming chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B for thread class compatibility.

SKU 3G-OTH-310968

Brand
OSG
Item
Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer
Category
Spiral-Flute Extension Taps
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OSG
Manufacturer Part Number
1296900
Type
H3 / 2B-3B, Bottoming Chamfer, High Speed Steel
Flute
3

Technical Documents

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

Product Description

The OSG Extension Tap (#8-32 UNC, MPN 1296900) is a spiral-flute extension tap with a bottoming chamfer, made from high-speed steel. It features 3 flutes and is rated H3 / 2B-3B for thread class compatibility.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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 in metalworking. Its spiral-flute design evacuates chips upward, making it ideal for bottoming chamfer applications in automotive, aerospace, and general manufacturing where precise internal threads are 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 an H3 / 2B-3B tolerance class. It features 3 flutes, a bottoming chamfer, and is made from high-speed steel. The manufacturer part number is 1296900, and it is designed for spiral-flute extension tapping applications.

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

You can source the OSG Extension Tap #8-32 UNC worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we provide reliable sourcing and supply for this OSG tapping tool.

How to select the correct OSG Extension Tap for threading?

To select the correct OSG Extension Tap, match the thread size (e.g., #8-32 UNC), chamfer type (bottoming for blind holes), and tolerance class (H3 / 2B-3B) to your application. Consider material hardness and hole depth; high-speed steel taps suit general-purpose threading. For extension taps, ensure reach length accommodates your workpiece geometry.

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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Cross-referenced by specification & description
OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 1296700)
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OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 1296700)
OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 1297300)
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OSG Extension Tap: #10-24 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 1297300)
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OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1296800)
OSG Extension Tap: #6-32 UNC, H3 / 2B-3B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 1296500)
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OSG Extension Tap: #6-32 UNC, H3 / 2B-3B, 2 Flute, Bottoming Chamfer, High Speed Steel (MPN 1296500)
OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1296600)
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OSG Extension Tap: #8-32 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1296600)
OSG Extension Tap: #10-32 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 1297700)
OSG
OSG Extension Tap: #10-32 UNF, H3 / 2B-3B, 3 Flute, Bottoming Chamfer, High Speed Steel (MPN 1297700)

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OSG Extension Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1298800)
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OSG Extension Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 1298800)