OSG Thread Mill: Helical Flute, M3x0.5 Metric, 2 Flute
SKU 3G-OTH-222686
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Frequently Asked Questions
What is the OSG Helical-Flute Thread Mill used for?
The OSG Helical-Flute Thread Mill is designed for threading aluminum and non-ferrous materials. Its DLC-IGUSS coating reduces friction and built-up edge, making it ideal for high-speed CNC machining of M3x0.5 metric threads in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG Thread Mill 8331220?
The OSG Thread Mill 8331220 is a helical-flute, 2-flute carbide tool with DLC-IGUSS coating. It cuts M3x0.5 metric threads and is optimized for aluminum. The manufacturer part number is 8331220, and it is produced by OSG, a leading cutting-tool brand.
Where to buy the OSG Thread Mill 8331220 worldwide?
You can source the OSG Thread Mill 8331220 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 precision threading tool.
How to select the correct OSG thread mill for aluminum?
Select an OSG thread mill with DLC-IGUSS coating for aluminum to prevent chip adhesion. Match the thread size (e.g., M3x0.5), flute count (2-flute for smaller diameters), and helical-flute geometry for chip evacuation. Always verify the tool's maximum RPM and coolant compatibility with your CNC machine.
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Common applications for OSGOSG Products
3G Electric supplies OSG helical-flute thread mills for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.


