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OSG Roughing End Mill: Cobalt, 4 Flute, 1/4" Mill Dia, 5/8" LOC, 2-7/16" OAL (MPN 4909000) - General Purpose Cobalt Roughing End Mills
OSGGeneral Purpose Cobalt Roughing End Mills

OSG Roughing End Mill: Cobalt, 4 Flute, 1/4" Mill Dia, 5/8" LOC, 2-7/16" OAL (MPN 4909000)

OSG General Purpose Cobalt Roughing End Mills.

SKU 3G-OTH-268884

Brand
OSG
Item
Roughing End Mill: Cobalt, 4 Flute, 1/4" Mill Dia, 5/8" LOC, 2-7/16" OAL
Category
General Purpose Cobalt Roughing End Mills
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Technical Specifications

OSG
Manufacturer Part Number
4909000

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

Product Description

OSG General Purpose Cobalt Roughing End Mills.

Frequently Asked Questions

What is the OSG 4909000 roughing end mill used for?

The OSG 4909000 is a general purpose cobalt roughing end mill used for aggressive material removal in ferrous metals. It is designed for roughing operations in milling applications, providing efficient chip evacuation and reduced cutting forces. This tool is suitable for use in industrial machining environments.

What are the specifications of the OSG 4909000 roughing end mill?

The OSG 4909000 roughing end mill is made of cobalt, has 4 flutes, a 1/4" mill diameter, 5/8" length of cut (LOC), and 2-7/16" overall length (OAL). It is a general purpose tool designed for roughing operations. The manufacturer part number is 4909000.

Where to buy the OSG 4909000 roughing end mill worldwide?

You can source the OSG 4909000 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 on this item.

How to select the correct OSG roughing end mill for your application?

To select the correct OSG roughing end mill, consider the material being machined, required cut depth, and machine rigidity. For general purpose roughing in ferrous metals, the 4909000 with 4 flutes and cobalt construction offers good chip evacuation and wear resistance. Always match tool diameter and length of cut to your specific operation.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Roughing End Mill: Cobalt, 4 Flute, 3/4" Mill Dia, 3" LOC, 5-1/4" OAL (MPN 4901100)
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OSG Roughing End Mill: Cobalt, 4 Flute, 3/4" Mill Dia, 3" LOC, 5-1/4" OAL (MPN 4901100)
OSG Roughing End Mill: Cobalt, 4 Flute, 3/4" Mill Dia, 2-1/4" LOC, 4-1/2" OAL (MPN 4901400)
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OSG Roughing End Mill: Cobalt, 4 Flute, 3/4" Mill Dia, 2-1/4" LOC, 4-1/2" OAL (MPN 4901400)
OSG Roughing End Mill: Cobalt, 4 Flute, 5/8" Mill Dia, 2" LOC, 4-1/8" OAL (MPN 4900600)
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OSG Roughing End Mill: Cobalt, 4 Flute, 5/8" Mill Dia, 2" LOC, 4-1/8" OAL (MPN 4900600)
OSG Roughing End Mill: Cobalt, 4 Flute, 5/8" Mill Dia, 3" LOC, 5-1/8" OAL (MPN 4900800)
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OSG Roughing End Mill: Cobalt, 4 Flute, 5/8" Mill Dia, 3" LOC, 5-1/8" OAL (MPN 4900800)
OSG Roughing End Mill: Cobalt, 5 Flute, 1-1/8" Mill Dia, 2" LOC, 4-1/2" OAL (MPN 4911500)
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OSG Roughing End Mill: Cobalt, 5 Flute, 1-1/8" Mill Dia, 2" LOC, 4-1/2" OAL (MPN 4911500)
OSG Roughing End Mill: Cobalt, 8 Flute, 2" Mill Dia, 2" LOC, 4-1/2" OAL (MPN 4920100)
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OSG Roughing End Mill: Cobalt, 8 Flute, 2" Mill Dia, 2" LOC, 4-1/2" OAL (MPN 4920100)

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