OSG Spiral Point Tap: 1/2"-20 UNF, H7 / 2B-3B, 3 Flute
SKU 3G-OTH-215955
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Frequently Asked Questions
What is the OSG spiral point tap used for?
The OSG spiral point tap is designed for through-hole threading in metals. Its spiral point pushes chips ahead, preventing clogging. It is commonly used in automotive, aerospace, and general machining for creating UNF threads in steel, aluminum, and alloys.
What are the specifications of the OSG 2842701 tap?
This OSG spiral point tap has a 1/2"-20 UNF thread size, H7 / 2B-3B tolerance, 3 flutes, and a plug chamfer. It is a general-purpose tap for through-hole applications. The manufacturer part number is 2842701.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide. We handle full logistics and customs clearance for international orders. As a global industrial sourcing partner, we provide genuine OSG cutting tools and can quote for your specific tap requirements.
How to select the right OSG tap for UNF threads?
Select an OSG tap with the correct thread size (e.g., 1/2"-20 UNF) and tolerance class (H7 for 2B fit). For through holes, use a spiral point tap with a plug chamfer. Match the tap material to your workpiece—OSG offers HSS and carbide options for different metals.
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Common applications for OSGOSG Products
3G Electric supplies OSG general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















