OSG Straight Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 4 Flute, Bottoming Chamfer
SKU 3G-OTH-211090
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Frequently Asked Questions
What is OSG straight flute tap 1/2-20 UNF used for?
This OSG straight flute tap is designed for threading blind holes in aluminum and non-ferrous materials. Its bottoming chamfer allows threading close to the hole bottom, while the V-coated powdered metal construction provides wear resistance for production tapping.
What are the specifications of OSG tap 1005201708?
The OSG tap has a 1/2-20 UNF thread, H5 tolerance for 2B-3B class fit, 4 flutes, and a bottoming chamfer. It is made of V-coated powdered metal. The manufacturer part number is 1005201708.
Where to buy OSG straight flute tap 1/2-20 UNF worldwide?
3G Electric supplies and delivers this OSG straight flute tap worldwide. We handle full logistics and customs clearance to ensure the tap reaches your facility, whether for maintenance or production runs.
How to select the right tap for aluminum threading?
For aluminum, choose a tap with a polished flute and coating to reduce chip adhesion. A bottoming chamfer suits blind holes, while a plug chamfer works for through holes. Match thread size and class (e.g., 1/2-20 UNF, H5) to your application.
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Common applications for OSGOSG Products
3G Electric supplies OSG straight-flute machine taps for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















