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OSG Straight Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 1142908) - General Purpose Hand Taps
OSGGeneral Purpose Hand Taps

OSG Straight Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 1142908)

SKU 3G-OTH-221796

Brand
OSG
Item
Straight Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 4 Flute, Bottoming Chamfer
Category
General Purpose Hand Taps
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Technical Specifications

OSG
Manufacturer Part Number
1142908
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the OSG Straight Flute Tap 1/2"-20 UNF used for?

This OSG straight flute tap is used for cutting internal threads in pre-drilled holes. It is designed for general-purpose hand tapping in a wide range of materials, including steel, aluminum, and cast iron. The 1/2"-20 UNF thread size is common in automotive, aerospace, and industrial fastening applications.

What are the specifications of the OSG Straight Flute Tap 1142908?

The OSG Straight Flute Tap, MPN 1142908, has a thread size of 1/2"-20 UNF with an H5 tolerance class, suitable for 2B-3B thread classes. It features 4 flutes and a bottoming chamfer design for threading to the bottom of blind holes. It is a general-purpose hand tap.

Where to buy the OSG Straight Flute Tap 1/2"-20 UNF worldwide?

You can source the OSG Straight Flute Tap 1/2"-20 UNF (MPN 1142908) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this OSG tap.

How to select the correct OSG tap for UNF threads?

To select the correct OSG tap for UNF threads, match the thread size (e.g., 1/2"-20 UNF) and tolerance class (e.g., H5) to your application's requirements. For blind holes, choose a bottoming chamfer tap like this OSG model. Always verify the material being tapped and use appropriate cutting fluid for best results.

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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