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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 1293201) 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-308150

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

OSG
Manufacturer Part Number
1293201
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 1293201) 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 OEM tool, supporting your threading operations across 14 industrial departments — with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

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

The OSG Extension Tap is used for threading blind holes in pulleys and other hard-to-reach areas. Its extended length allows access where standard taps cannot reach. It is suitable for ferrous and non-ferrous materials, producing internal threads to H3 / 2B-3B tolerance classes.

What are the specifications of the OSG Extension Tap MPN 1293201?

The OSG Extension Tap MPN 1293201 has a thread size of 5/8"-11 UNC, with H3 / 2B-3B tolerance. It features a 4-flute design, plug chamfer, and is made from black oxide high-speed steel. It is classified as a pulley tap for extended reach threading.

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

You can source the OSG Extension Tap 5/8"-11 UNC worldwide through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct OSG extension tap for a threading application?

To select the correct OSG extension tap, match the thread size (e.g., 5/8"-11 UNC) and tolerance class (H3 / 2B-3B) to your hole requirements. Consider material type and tap chamfer (plug for blind holes). OSG taps are made from high-speed steel for durability in production threading.

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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