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3G Electric
OSG #10-32 UNF Spiral-Point Extension Tap - Spiral-Point Extension Taps
OSGSpiral-Point Extension Taps

OSG #10-32 UNF Spiral-Point Extension Tap

The OSG Extension Tap (#10-32 UNF, MPN 1294801) is a spiral-point extension tap with a plug chamfer, black oxide high-speed steel construction, and an H3 / 2B-3B tolerance class. It features 2 flutes and is designed…

SKU 3G-OTH-313577

Brand
OSG
Item
#10-32 UNF Spiral-Point Extension Tap
Part Number
1294801
Category
Spiral-Point Extension Taps
Available to Order
Also known as:1294801OSG
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

OSG
Manufacturer Part Number
1294801
Type
H3 / 2B-3B, Plug Chamfer, Black Oxide High Speed Steel
Flute
2

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

Product Description

The OSG Extension Tap (#10-32 UNF, MPN 1294801) is a spiral-point extension tap with a plug chamfer, black oxide high-speed steel construction, and an H3 / 2B-3B tolerance class. It features 2 flutes and is designed for threading applications requiring extended reach.

Frequently Asked Questions

What is OSG Extension Tap #10-32 UNF used for?

This OSG extension tap is used for threading #10-32 UNF holes in hard-to-reach areas. Its extended length and 2-flute spiral-point design clear chips forward, making it ideal for through-hole applications in machining, automotive, and general manufacturing where standard taps cannot reach.

What are the specifications of OSG Extension Tap MPN 1294801?

The OSG Extension Tap MPN 1294801 is a #10-32 UNF, H3 / 2B-3B class of fit, with 2 flutes, plug chamfer, and black oxide high-speed steel construction. It is designed for threading blind or through holes where extended reach is required.

Where to buy OSG Extension Tap #10-32 UNF worldwide?

3G Electric supplies the OSG Extension Tap #10-32 UNF MPN 1294801 worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time for your region.

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

To select the correct OSG extension tap, match the thread size (#10-32 UNF), class of fit (H3 / 2B-3B), and chamfer type (plug) to your hole requirements. Ensure the tap length provides sufficient reach. For blind holes, use a plug or bottoming chamfer; for through holes, spiral-point design is preferred.

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 spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Spiral-point extension tap for threading blind or through holes in hard-to-reach areas. Features a plug chamfer and 2 flutes. Made from black oxide high-speed steel. Thread class H3 / 2B-3B. Suitable for general metalworking applications where standard taps cannot reach
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High-speed steel spiral-point extension tap for threading blind or deep holes where standard taps cannot reach. #4-40 UNC thread size, H2 tolerance for 2B-3B class fit, plug chamfer, and 2 flutes. Spiral-point design pushes chips forward for efficient chip evacuation in through-hole applications

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