OSG Straight Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 1142908)
SKU 3G-OTH-221796
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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.
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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.















