OSG Roughing End Mill: Cobalt, 4 Flute, 1/4" Mill Dia, 3/4" LOC, 2-1/2" OAL (MPN 4909100)
SKU 3G-OTH-268936
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Frequently Asked Questions
What is the OSG 4909100 roughing end mill used for?
The OSG 4909100 is a general purpose cobalt roughing end mill used for aggressive material removal in ferrous and non-ferrous metals. It is ideal for roughing operations in mold, die, and general machining applications where high stock removal and surface finish are required.
What are the specifications of the OSG 4909100 roughing end mill?
The OSG 4909100 is a 4-flute cobalt roughing end mill with a 1/4" mill diameter, 3/4" length of cut, and 2-1/2" overall length. It is designed for general purpose roughing and is made from cobalt high-speed steel for heat resistance and durability.
Where to buy the OSG 4909100 roughing end mill worldwide?
You can source the OSG 4909100 roughing end mill through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your machining operations.
How to select the right OSG roughing end mill for your application?
Select an OSG roughing end mill based on material, flute count, and diameter. For general purpose roughing in steel or cast iron, a 4-flute cobalt end mill like the 4909100 offers good chip evacuation and heat resistance. Match the length of cut to your depth requirements for optimal performance.
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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.













