OSG Spiral Point Tap: 1/2"-20 UNF, 3B, 3 Flute, Plug Chamfer
SKU 3G-OTH-215486
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is the OSG Spiral Point Tap 1/2"-20 UNF used for?
The OSG Spiral Point Tap is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral-point geometry pushes chips forward, reducing chip clogging and tap breakage. Common applications include automotive, aerospace, and general manufacturing where UNF threads are required.
What are the specifications of the OSG Spiral Point Tap 2881300?
The OSG Spiral Point Tap has a 1/2"-20 UNF thread size, 3B class fit, 3 flutes, and a plug chamfer. It is made from high-speed steel (HSS) for durability. The manufacturer part number is 2881300, and it is designed for general-purpose through-hole tapping.
Where to buy the OSG Spiral Point Tap 1/2"-20 UNF worldwide?
3G Electric supplies the OSG Spiral Point Tap 2881300 worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this tap to support your manufacturing operations.
How to select the correct OSG Spiral Point Tap for through-hole threading?
Select the tap based on thread size, pitch, and class fit (e.g., 1/2"-20 UNF, 3B). For through holes, a spiral-point tap with plug chamfer is ideal as it pushes chips forward. Ensure the tap material (HSS) matches the workpiece hardness. OSG taps are precision-ground for consistent thread quality.
Used in
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.















