OSG Roughing End Mill: Cobalt, 5 Flute, 7/8" Mill Dia, 3-1/2" LOC, 5-3/4" OAL (MPN 4901900)

The OSG 4901900 is a general purpose cobalt roughing end mill used for heavy material removal in industrial machining. It is designed for ferrous metals and high-temperature alloys, commonly applied in mold, die, and aerospace manufacturing. Its 5-flute design provides efficient chip evacuation and reduced vibration during roughing operations.

The OSG 4901900 is a cobalt roughing end mill with a 7/8" mill diameter, 3-1/2" length of cut (LOC), and 5-3/4" overall length (OAL). It has 5 flutes and is designed for general purpose roughing. The manufacturer part number is 4901900, and it is made by OSG.

You can source the OSG 4901900 roughing end mill 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; we provide reliable sourcing for this OSG cobalt end mill.

To select the right OSG roughing end mill, match the mill diameter and length of cut to your workpiece geometry and machine capacity. For ferrous materials, cobalt end mills like the 4901900 offer heat resistance. Consider flute count for chip evacuation; 5 flutes balance material removal and finish. Always verify shank compatibility with your tool holder.