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OSG Extension Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer - Pulley Taps
OSGPulley Taps

OSG Extension Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer

The OSG Extension Tap (MPN 1293401) is a 5/8"-11 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets this demand and sources…

SKU 3G-OTH-308211

Brand
OSG
Item
Extension Tap: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer
Category
Pulley Taps
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Technical Specifications

OSG
Manufacturer Part Number
1293401
Type
H3 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute
4
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Extension Tap (MPN 1293401) is a 5/8"-11 UNC pulley tap with a H3 / 2B-3B tolerance, 4-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric interprets this demand and sources the genuine OSG tool, supporting your threading operations across 14 industrial departments — with specialist depth in combustion, pumps, and controls as a trust anchor.

Frequently Asked Questions

What is the OSG Extension Tap 5/8"-11 UNC used for?

The OSG Extension Tap is used for threading blind or deep holes in industrial applications such as automotive, aerospace, and general manufacturing. Its extended reach allows threading in hard-to-access areas, and the plug chamfer design helps start threads in through or blind holes.

What are the specifications of the OSG Extension Tap MPN 1293401?

The OSG Extension Tap has a thread size of 5/8"-11 UNC, with an H3 / 2B-3B tolerance class. It features 4 flutes, a plug chamfer, and is made from black oxide high-speed steel. This combination provides good wear resistance and chip evacuation for threading steel and other materials.

Where to buy the OSG Extension Tap 5/8"-11 UNC worldwide?

You can source the OSG Extension Tap MPN 1293401 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct threading tool for your application.

How to select the correct OSG Extension Tap for threading?

Select the OSG Extension Tap based on thread size (e.g., 5/8"-11 UNC), tolerance class (H3 / 2B-3B), and material. For deep or blind holes, choose an extension tap with a plug chamfer and sufficient flute length. Always match the tap to the workpiece material and required thread fit.

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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