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OSG Roughing End Mill: Cobalt, 3 Flute, Fine Pitch, 5/16" Mill Dia, 3/4" LOC - General Purpose Cobalt Roughing End Mills
OSGGeneral Purpose Cobalt Roughing End Mills

OSG Roughing End Mill: Cobalt, 3 Flute, Fine Pitch, 5/16" Mill Dia, 3/4" LOC

The OSG Roughing End Mill is a general-purpose cobalt roughing end mill with a 5/16" mill diameter, 3/4" length of cut, and 2-1/2" overall length. It features a fine pitch and 3 flutes (MPN 4509400). 3G Electric…

SKU 3G-OTH-269168

Brand
OSG
Item
Roughing End Mill: Cobalt, 3 Flute, Fine Pitch, 5/16" Mill Dia, 3/4" LOC
Category
General Purpose Cobalt Roughing End Mills
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OSG
Manufacturer Part Number
4509400
Type
Fine Pitch
Mill Dia
5/16"
OAL
2-1/2"
Flute
3
LOC
3/4"

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Roughing End Mill is a general-purpose cobalt roughing end mill with a 5/16" mill diameter, 3/4" length of cut, and 2-1/2" overall length. It features a fine pitch and 3 flutes (MPN 4509400). 3G Electric interprets demand and delivers this genuine industrial cutting tool across 14 departments — with specialist depth in machining — ensuring you get the right answer, not just a catalog.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is OSG 4509400 roughing end mill used for?

The OSG 4509400 is a general-purpose cobalt roughing end mill used for aggressive material removal in machining operations. Its fine-pitch design and 3-flute geometry make it suitable for roughing ferrous metals, stainless steels, and high-temperature alloys in industrial manufacturing.

What are the specifications of OSG 4509400 roughing end mill?

The OSG 4509400 roughing end mill has a 5/16" mill diameter, 3/4" length of cut (LOC), 2-1/2" overall length (OAL), 3 flutes, and fine-pitch tooth configuration. It is made from cobalt high-speed steel for heat resistance and durability in roughing applications.

Where to buy OSG 4509400 roughing end mill worldwide?

3G Electric supplies the OSG 4509400 roughing end mill worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this cobalt end mill.

How to select the right roughing end mill for steel?

For roughing steel, choose a cobalt or carbide end mill with fine pitch for chip evacuation and heat resistance. Match flute count to material hardness—3 flutes balance chip clearance and rigidity. Ensure shank diameter fits your collet and length of cut exceeds your depth of cut.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG 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.

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This OSG roughing end mill is made from cobalt steel for use in aggressive material removal on steel, stainless steel, and ferrous alloys. The 4-flute design provides efficient chip evacuation and reduced cutting forces during roughing operations. With a 5/16" mill diameter, 3/4" length of cut, and 2-1/2" overall length, it is suited for general-purpose machining applications
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This OSG roughing end mill is made from cobalt steel for use in aggressive material removal on steel, stainless steel, and ferrous alloys. The 4-flute design provides efficient chip evacuation and reduced cutting forces during roughing operations. With a 5/16" mill diameter, 3/4" length of cut, and 2-1/2" overall length, it is suited for general-purpose machining applications
This OSG cobalt roughing end mill is designed for heavy material removal in industrial machining. Its 5-flute configuration promotes efficient chip evacuation and reduced vibration during roughing operations. Suitable for ferrous metals and high-temperature alloys, it is commonly used in mold, die, and aerospace manufacturing
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This OSG cobalt roughing end mill is designed for heavy material removal in industrial machining. Its 5-flute configuration promotes efficient chip evacuation and reduced vibration during roughing operations. Suitable for ferrous metals and high-temperature alloys, it is commonly used in mold, die, and aerospace manufacturing
This OSG cobalt roughing end mill is designed for heavy material removal in industrial machining. Its 5-flute design promotes efficient chip evacuation and reduced vibration during roughing operations. Suitable for ferrous metals and high-temperature alloys, it is commonly used in mold, die, and aerospace manufacturing
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This OSG cobalt roughing end mill is designed for heavy material removal in industrial machining. Its 5-flute design promotes efficient chip evacuation and reduced vibration during roughing operations. Suitable for ferrous metals and high-temperature alloys, it is commonly used in mold, die, and aerospace manufacturing
This OSG roughing end mill is made of cobalt steel with a TiCN coating and fine-pitch geometry. It has 4 flutes, a 1/2" cutting diameter, 1/2" length of cut, and 2-1/2" overall length. Designed for general-purpose roughing operations in ferrous and non-ferrous metals, it is suited for high-speed material removal in industrial milling applications
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This OSG roughing end mill is made of cobalt steel with a TiCN coating and fine-pitch geometry. It has 4 flutes, a 1/2" cutting diameter, 1/2" length of cut, and 2-1/2" overall length. Designed for general-purpose roughing operations in ferrous and non-ferrous metals, it is suited for high-speed material removal in industrial milling applications
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This OSG roughing end mill is made of cobalt with a TiAlN coating and fine-pitch design. It has 3 flutes, a 1/2" mill diameter, and a 1/2" length of cut. Suitable for aggressive material removal in ferrous metals, high-temperature alloys, and steels, it is commonly used in roughing passes for mold, die, and aerospace machining
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