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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 1293001) 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 demand and delivers…

SKU 3G-OTH-308201

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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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1293001
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 1293001) 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 demand and delivers this genuine industrial cutting tool across 14 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 or deep holes in industrial applications, particularly for pulley assemblies. Its extended reach allows threading in hard-to-access areas, common in automotive and machinery maintenance. The 5/8"-11 UNC size suits standard coarse threads in steel or cast iron.

What are the specifications of the OSG Extension Tap MPN 1293001?

The OSG Extension Tap MPN 1293001 is a 5/8"-11 UNC pulley tap with a plug chamfer and 4 flutes. It features a H3 / 2B-3B tolerance class, made from black oxide high-speed steel. This combination ensures precise thread fit and durability in production tapping.

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, 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 OSG pulley tap.

How to select the correct OSG extension tap for threading?

Select the OSG extension tap based on thread size, material, and hole depth. For 5/8"-11 UNC threads in steel, use a plug chamfer tap like MPN 1293001. Ensure the H3 tolerance matches your required thread class (2B-3B). Always match tap length to the hole depth for proper chip evacuation.

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: 5/8"-11 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1293401)
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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)
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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)
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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: 3/8"-16 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1291001)
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OSG Extension Tap: 3/8"-16 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1291001)
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: 3/8"-16 UNC, H3 / 2B-3B, 4 Flute, Plug Chamfer, Black Oxide High Speed Steel (MPN 1291201)

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