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OSG Roughing End Mill: Cobalt, TiAlN Coated, 3 Flute, Fine Pitch, 1/2" Mill Dia - General Purpose Cobalt Roughing End Mills
OSGGeneral Purpose Cobalt Roughing End Mills

OSG Roughing End Mill: Cobalt, TiAlN Coated, 3 Flute, Fine Pitch, 1/2" Mill Dia

The OSG Roughing End Mill is a general-purpose cobalt end mill with a TiAlN coating, fine pitch, and 3 flutes. It has a 1/2" mill diameter and 1/2" LOC (MPN 4550011). 3G Electric interprets demand and delivers this…

SKU 3G-OTH-268893

Brand
OSG
Item
Roughing End Mill: Cobalt, TiAlN Coated, 3 Flute, Fine Pitch, 1/2" Mill Dia
Category
General Purpose Cobalt Roughing End Mills
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
4550011
Type
TiAlN Coated, Fine Pitch
Mill Dia
1/2"
Flute
3
LOC
1/2"

Technical Documents

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

Product Description

The OSG Roughing End Mill is a general-purpose cobalt end mill with a TiAlN coating, fine pitch, and 3 flutes. It has a 1/2" mill diameter and 1/2" LOC (MPN 4550011). 3G Electric interprets demand and delivers this cutting tool across 14 industrial departments, with specialist depth in combustion, pumps, and controls as an authorized distributor.

Frequently Asked Questions

What is the OSG 4550011 roughing end mill used for?

The OSG 4550011 is a general-purpose cobalt roughing end mill used for aggressive material removal in ferrous metals. Its TiAlN coating and fine-pitch design suit high-temperature alloys and steels. It is commonly applied in mold, die, and aerospace machining where roughing passes precede finishing.

What are the specifications of the OSG 4550011 roughing end mill?

The OSG 4550011 is a 3-flute, TiAlN-coated, fine-pitch cobalt roughing end mill with a 1/2" mill diameter and 1/2" length of cut. It is designed for general-purpose roughing in steel and high-temperature alloys. The manufacturer part number is 4550011.

Where to buy the OSG 4550011 roughing end mill worldwide?

You can source the OSG 4550011 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 and other OSG cutting tools.

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

Select an OSG roughing end mill based on material, coating, and flute count. For steels and high-temperature alloys, a TiAlN-coated cobalt end mill like the 4550011 with fine pitch provides efficient chip evacuation. Match mill diameter and length of cut to your workpiece geometry and machine rigidity.

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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