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OSG Thread Forming Tap: #12-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: #12-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer

The OSG Thread Forming Tap (#12-28 UNF, MPN 1400123900) is a general-purpose thread-forming tap with an H3 / 2B-3B tolerance, modified bottoming chamfer, and cobalt construction. 3G Electric interprets demand and…

SKU 3G-OTH-237404

Brand
OSG
Item
Thread Forming Tap: #12-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer
Category
General Purpose Thread-Forming Taps
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Technical Specifications

OSG
Manufacturer Part Number
1400123900
Type
H3 / 2B-3B, Modified Bottoming Chamfer, Cobalt
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Thread Forming Tap (#12-28 UNF, MPN 1400123900) is a general-purpose thread-forming tap with an H3 / 2B-3B tolerance, modified bottoming chamfer, and cobalt construction. 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments — with specialist depth in combustion, pumps, and controls as an authorised distributor — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is the OSG Thread Forming Tap #12-28 UNF used for?

The OSG Thread Forming Tap #12-28 UNF is used to create internal threads in ductile materials such as aluminum, brass, and low-carbon steel. It is ideal for applications requiring strong, chip-free threads in automotive, aerospace, and general manufacturing. The modified bottoming chamfer allows threading close to the bottom of blind holes.

What are the specifications of the OSG Thread Forming Tap 1400123900?

The OSG Thread Forming Tap (MPN 1400123900) has a #12-28 UNF thread size, H3 / 2B-3B tolerance, and a modified bottoming chamfer. It is made of cobalt for enhanced wear resistance and heat tolerance. This general-purpose tap is designed for through-hole or blind-hole threading in ferrous and non-ferrous materials.

Where to buy OSG Thread Forming Tap #12-28 UNF worldwide?

You can source the OSG Thread Forming Tap #12-28 UNF 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; we supply genuine OSG taps to procurement teams and plant engineers globally.

How to select the correct OSG thread forming tap for my application?

Select the OSG thread forming tap based on material, thread size, and hole type. For #12-28 UNF threads in ductile materials, use a cobalt tap with H3 / 2B-3B tolerance. Ensure the chamfer type matches your hole: modified bottoming for blind holes. Consult OSG's technical data for recommended speeds and lubrication to maximize tool life.

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

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