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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
Category
General Purpose Hand Taps
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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
1025905

Technical Documents

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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
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 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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Cross-referenced by specification & description
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