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

OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 3/4" Mill Dia

The OSG Roughing End Mill: Cobalt (MPN 4551508) is a general-purpose, TiCN-coated, fine-pitch, 4-flute end mill with a 3/4" mill diameter, 3" length of cut, and 5-1/4" overall length. 3G Electric sources this genuine…

SKU 3G-OTH-269267

Brand
OSG
Item
Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 3/4" 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
4551508
Type
TiCN Coated, Fine Pitch
Mill Dia
3/4"
OAL
5-1/4"
Flute
4
LOC
3"

Technical Documents

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

Product Description

The OSG Roughing End Mill: Cobalt (MPN 4551508) is a general-purpose, TiCN-coated, fine-pitch, 4-flute end mill with a 3/4" mill diameter, 3" length of cut, and 5-1/4" overall length. 3G Electric sources this genuine OSG tool across 14 industrial departments, with specialist expertise in cutting tools and machining, ensuring you get the right solution for your application.

Frequently Asked Questions

What is OSG 4551508 roughing end mill used for?

The OSG 4551508 is a general-purpose cobalt roughing end mill used for aggressive material removal in machining operations. Its TiCN coating and fine-pitch design suit steels, cast iron, and high-temperature alloys across industrial manufacturing, tool and die, and heavy equipment sectors.

What are the specifications of OSG 4551508 roughing end mill?

The OSG 4551508 has a 3/4" mill diameter, 3" length of cut, 5-1/4" overall length, 4 flutes, fine pitch, and TiCN coating. It is made from cobalt HSS for heat resistance and durability in roughing applications.

Where to buy OSG 4551508 roughing end mill worldwide?

3G Electric supplies the OSG 4551508 roughing end mill to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this cobalt TiCN-coated end mill.

How to select the right roughing end mill for steel?

For steel roughing, choose a cobalt end mill with TiCN coating for heat resistance and wear life. Match flute count to material: 4 flutes balance chip evacuation and finish. Ensure shank diameter fits your collet and length of cut exceeds your depth of pass.

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, 4 Flute, Fine Pitch, 3/4" Mill Dia, 1-5/8" LOC (MPN 4551311)
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