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OSG Roughing End Mill: Cobalt, TiAlN Coated, 4 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, 4 Flute, Fine Pitch, 1/2" Mill Dia

The OSG Roughing End Mill is a general-purpose cobalt end mill with TiAlN coating and fine-pitch geometry. It features a 1/2" mill diameter, 1-1/4" length of cut, and 4 flutes (MPN 4550111). 3G Electric interprets…

SKU 3G-OTH-269196

Brand
OSG
Item
Roughing End Mill: Cobalt, TiAlN Coated, 4 Flute, Fine Pitch, 1/2" Mill Dia
Category
General Purpose Cobalt Roughing End Mills
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
4550111
Type
TiAlN Coated, Fine Pitch
Mill Dia
1/2"
Flute
4
LOC
1-1/4"

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 TiAlN coating and fine-pitch geometry. It features a 1/2" mill diameter, 1-1/4" length of cut, and 4 flutes (MPN 4550111). 3G Electric interprets this demand and sources the genuine OSG tool, supporting your machining operations across 14 industrial departments — with specialist depth in combustion, pumps, and controls.

Frequently Asked Questions

What is the OSG 4550111 roughing end mill used for?

The OSG 4550111 is a general-purpose cobalt roughing end mill used for aggressive material removal in machining operations. It is suitable for ferrous metals, stainless steel, and high-temperature alloys, commonly applied in mold, die, and aerospace manufacturing.

What are the specifications of the OSG 4550111 roughing end mill?

The OSG 4550111 is a 4-flute, fine-pitch roughing end mill with a 1/2" mill diameter and 1-1/4" length of cut. It features a TiAlN coating and is made from cobalt steel, designed for high-speed machining and extended tool life in demanding applications.

Where to buy the OSG 4550111 roughing end mill worldwide?

You can source the OSG 4550111 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 hardness, required surface finish, and machine capabilities. For general-purpose steel, the TiAlN-coated cobalt 4550111 with 4 flutes offers good chip evacuation and heat resistance. Match flute count and coating to your specific workpiece and cutting conditions.

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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OSG Roughing End Mill: Cobalt, TiAlN Coated, 5 Flute, Fine Pitch, 1" Mill Dia, 2" LOC, 4-1/2" OAL (MPN 4560111)
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