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

OSG Extension Tap: 1/2"-13 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer - Pulley Taps
OSGPulley Taps

OSG Extension Tap: 1/2"-13 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer

The OSG Extension Tap (MPN 1292201) is a 1/2"-13 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. This tool is designed for threading…

SKU 3G-OTH-308206

Brand
OSG
Item
Extension Tap: 1/2"-13 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer
Category
Pulley 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
1292201
Type
H3 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute
4

Technical Documents

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

Product Description

The OSG Extension Tap (MPN 1292201) is a 1/2"-13 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. This tool is designed for threading applications requiring extended reach.

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 an OSG extension tap used for?

An OSG extension tap is used to cut internal threads in hard-to-reach or deep-hole applications. It is commonly employed in automotive, aerospace, and general manufacturing for threading blind or through holes where standard taps cannot reach. The extended shank provides clearance for obstructions.

What are the specifications of the OSG extension tap 1/2-13 UNC?

This OSG extension tap has a 1/2-13 UNC thread size, H3 / 2B-3B tolerance, 4 flutes, and a plug chamfer. It is made from black oxide high-speed steel. The manufacturer part number is 1292201. It is designed for threading steel and cast iron in production environments.

Where to buy OSG extension taps worldwide?

You can source OSG extension taps 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 on this and other OSG threading tools.

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

To select the correct OSG extension tap, match the thread size (e.g., 1/2-13 UNC), tolerance class (H3 / 2B-3B), and chamfer type (plug) to your material and hole depth. For deep or obstructed holes, choose an extension tap with sufficient reach. Always verify the tap's coating and flute count for the workpiece material.

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 pulley 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: 3/8"-16 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1291201)
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OSG Extension Tap: 7/16"-14 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1291401)
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OSG Extension Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1293401)
OSG Extension Tap: 3/4"-10 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1293801)
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OSG Extension Tap: 3/4"-10 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1293801)
OSG Extension Tap: 7/16"-14 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1291601)
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OSG Extension Tap: 7/16"-14 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1291601)

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OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1290001)
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OSG Extension Tap: 1/4"-20 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1290001)
OSG Extension Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1292801)
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OSG Extension Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1292801)
OSG Extension Tap: 3/4"-10 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1293601)
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OSG Extension Tap: 3/4"-10 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1293601)