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OSG Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer

SKU 3G-OTH-237103

Brand
OSG
Item
Thread Forming Tap: 1/4"-28 UNF, H3 / 2B-3B, Modified Bottoming Chamfer
Category
General Purpose Thread-Forming Taps
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Technical Specifications

OSG
Manufacturer Part Number
1400128305
Type
H3 / 2B-3B, Modified Bottoming Chamfer, TiN Coated Cobalt
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is an OSG thread forming tap used for?

An OSG thread forming tap creates internal threads by displacing material rather than cutting it. This 1/4"-28 UNF tap with TiN coated cobalt is ideal for ductile materials like aluminum and low-carbon steel in automotive and general manufacturing applications.

What are the specifications of the OSG 1/4"-28 UNF thread forming tap?

This OSG tap has a 1/4"-28 UNF thread size, H3 / 2B-3B tolerance, modified bottoming chamfer, and TiN coated cobalt construction. The manufacturer part number is 1400128305. It is designed for general purpose thread forming in through or blind holes.

Where to buy OSG thread forming taps worldwide?

3G Electric supplies OSG thread forming taps like the 1/4"-28 UNF model to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG tooling.

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

Select an OSG thread forming tap based on thread size (e.g., 1/4"-28 UNF), material type, and hole condition. For ductile materials, use a forming tap with TiN coating for longer life. Match the chamfer type (modified bottoming for blind holes) and tolerance class (H3) to your thread requirements.

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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