OSG Roughing End Mill: Cobalt, 4 Flute, 5/16" Mill Dia, 1-3/8" LOC, 3-1/8" OAL (MPN 4909500)
SKU 3G-OTH-269274
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Frequently Asked Questions
What is OSG 4909500 roughing end mill used for?
The OSG 4909500 is a general-purpose cobalt roughing end mill used for heavy material removal in machining operations. It is designed for ferrous metals and alloys, providing efficient chip evacuation and reduced cutting forces in industrial milling applications.
What are the specifications of OSG 4909500 roughing end mill?
The OSG 4909500 is a cobalt roughing end mill with a 5/16" mill diameter, 1-3/8" length of cut, and 3-1/8" overall length. It has 4 flutes and is designed for general-purpose roughing in metalworking. The manufacturer part number is 4909500.
Where to buy OSG 4909500 roughing end mill worldwide?
3G Electric supplies the OSG 4909500 roughing end mill worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this cobalt end mill.
How to select the right roughing end mill for machining?
Select a roughing end mill based on material hardness, flute count, and diameter. For ferrous metals, cobalt or carbide tools like the OSG 4909500 offer heat resistance. Match length of cut to your depth requirements and ensure shank fits your collet. Consult OSG's technical data for optimal feeds and speeds.
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Common applications for OSGOSG Products
3G Electric supplies OSG general purpose cobalt roughing end mills. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.












