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OSG Straight Flute Tap: #12-28 UNF, H3 / 2B-3B, 4 Flute, Bottoming Chamfer - General Purpose Hand Taps
OSGGeneral Purpose Hand Taps

OSG Straight Flute Tap: #12-28 UNF, H3 / 2B-3B, 4 Flute, Bottoming Chamfer

OSG General Purpose Hand Taps.

SKU 3G-OTH-221809

Brand
OSG
Item
Straight Flute Tap: #12-28 UNF, H3 / 2B-3B, 4 Flute, Bottoming Chamfer
Part Number
1025905
Category
General Purpose Hand Taps
Available to Order
Also known as:1025905OSG
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Technical Specifications

OSG
Manufacturer Part Number
1025905

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

Product Description

OSG General Purpose Hand Taps.

Frequently Asked Questions

What is OSG straight flute tap #12-28 UNF used for?

This OSG straight flute tap is used for cutting internal threads in through or blind holes. It is ideal for general-purpose hand tapping in ferrous and non-ferrous materials, providing precise #12-28 UNF threads with a bottoming chamfer for full thread depth.

What are the specifications of OSG tap MPN 1025905?

The OSG straight flute tap MPN 1025905 has a #12-28 UNF thread size, H3 pitch diameter tolerance for 2B-3B class fit, 4 flutes, and a bottoming chamfer. It is a general-purpose hand tap designed for manual or machine tapping operations.

Where to buy OSG tap #12-28 UNF worldwide?

3G Electric supplies and delivers the OSG tap #12-28 UNF (MPN 1025905) worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure reliable delivery to your facility, regardless of location.

How to select the right OSG tap for #12-28 UNF threads?

Select an OSG tap with the correct thread size (#12-28 UNF), pitch diameter tolerance (H3 for 2B-3B fit), and chamfer type. For blind holes, use a bottoming chamfer like this model. Match tap material to workpiece hardness and consult OSG's technical data for optimal performance.

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

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General purpose hand tap for cutting internal UNF threads in ferrous and non-ferrous materials. Features a bottoming chamfer for threading close to the bottom of blind holes. H2 tolerance for 2B-3B class fit. Suitable for maintenance, repair, and production applications

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