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OSG 5/8"-11 UNC Pulley Tap - Pulley Taps
OSGPulley Taps

OSG 5/8"-11 UNC Pulley Tap

The OSG Extension Tap (MPN 1292801) 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 sources this genuine industrial…

SKU 3G-OTH-308200

Brand
OSG
Item
5/8"-11 UNC Pulley Tap
Part Number
1292801
Category
Pulley Taps
Available to Order
Also known as:1292801OSG
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Technical Specifications

OSG
Manufacturer Part Number
1292801
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 1292801) 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 sources this genuine industrial threading tool across 14 departments, with specialist expertise in combustion, pumps, and controls ensuring accurate sourcing and support.

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, such as pulley assemblies and engine blocks. The extended shank allows threading where standard taps cannot reach. This 5/8"-11 UNC tap with plug chamfer and 4 flutes is designed for through or blind holes in ferrous materials.

What are the specifications of the OSG extension tap 1292801?

The OSG extension tap MPN 1292801 is a 5/8"-11 UNC thread tap with H3 / 2B-3B tolerance, 4 flutes, and a plug chamfer. It is made from black oxide high-speed steel for wear resistance and reduced friction. This pulley tap is designed for threading in deep or obstructed locations.

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 the OSG 1292801 or other pulley taps. We supply genuine OSG tooling globally.

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

Select an OSG extension tap based on thread size, pitch, and material. For 5/8"-11 UNC threads in steel, use a plug chamfer tap with H3 tolerance for 2B-3B fit. Ensure the tap's flute count matches chip evacuation needs. Always match the tap to the hole depth and machine type for optimal thread quality.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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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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Pulley tap with 5/8"-11 UNC thread, H3 / 2B-3B tolerance, plug chamfer, and 4-flute design. Made from black oxide high-speed steel for threading blind or deep holes in steel and other materials. Suitable for general manufacturing and maintenance applications requiring extended reach
OSG
Pulley tap with 5/8"-11 UNC thread, H3 / 2B-3B tolerance, plug chamfer, and 4-flute design. Made from black oxide high-speed steel for threading blind or deep holes in steel and other materials. Suitable for general manufacturing and maintenance applications requiring extended reach

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