Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

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 is a general-purpose cobalt end mill with a TiCN coating and fine-pitch design. It features a 3/4" mill diameter, 1-5/8" length of cut, and 4 flutes (MPN 4551308). 3G Electric interprets…

SKU 3G-OTH-268901

Brand
OSG
Item
Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 3/4" Mill Dia
Category
General Purpose Cobalt Roughing End Mills
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
4551308
Type
TiCN Coated, Fine Pitch
Mill Dia
3/4"
Flute
4
LOC
1-5/8"

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The OSG Roughing End Mill is a general-purpose cobalt end mill with a TiCN coating and fine-pitch design. It features a 3/4" mill diameter, 1-5/8" length of cut, and 4 flutes (MPN 4551308). 3G Electric interprets demand and delivers this genuine industrial cutting tool across 14 departments, with specialist depth in combustion, pumps, and controls as an authorized distributor.

Frequently Asked Questions

What is the OSG 4551308 roughing end mill used for?

The OSG 4551308 is a general-purpose cobalt roughing end mill used for aggressive material removal in ferrous and non-ferrous metals. Its TiCN coating and fine-pitch geometry make it suitable for high-feed roughing operations in mold, die, and general machining applications.

What are the specifications of the OSG 4551308 roughing end mill?

The OSG 4551308 is a 4-flute, fine-pitch roughing end mill made from cobalt steel with a TiCN coating. It has a 3/4" mill diameter and a 1-5/8" length of cut. The manufacturer part number is 4551308, and it is designed for general-purpose roughing in industrial machining.

Where to buy the OSG 4551308 roughing end mill worldwide?

You can source the OSG 4551308 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 OSG tool.

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

Select an OSG roughing end mill based on material, coating, flute count, and diameter. For general-purpose roughing in steel or stainless, the TiCN-coated cobalt 4551308 with 4 flutes and fine pitch offers good chip evacuation and wear resistance. Match the mill diameter and length of cut to your workpiece geometry.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 1/4" Mill Dia, 3/4" LOC, 2-1/2" OAL (MPN 4559108)
OSG
OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 1/4" Mill Dia, 3/4" LOC, 2-1/2" OAL (MPN 4559108)
OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 3/4" Mill Dia, 3" LOC, 5-1/4" OAL (MPN 4551508)
OSG
OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 3/4" Mill Dia, 3" LOC, 5-1/4" OAL (MPN 4551508)
OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 5/16" Mill Dia, 3/4" LOC (MPN 4559408)
OSG
OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 5/16" Mill Dia, 3/4" LOC (MPN 4559408)
OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 1/4" Mill Dia, 1-1/4" LOC (MPN 4559208)
OSG
OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 1/4" Mill Dia, 1-1/4" LOC (MPN 4559208)
OSG Roughing End Mill: Cobalt, TiAlN Coated, 4 Flute, Fine Pitch, 3/4" Mill Dia, 1-5/8" LOC (MPN 4551311)
OSG
OSG Roughing End Mill: Cobalt, TiAlN Coated, 4 Flute, Fine Pitch, 3/4" Mill Dia, 1-5/8" LOC (MPN 4551311)
OSG Roughing End Mill: Cobalt, TiAlN Coated, 4 Flute, Fine Pitch, 1/4" Mill Dia, 3/4" LOC (MPN 4559111)
OSG
OSG Roughing End Mill: Cobalt, TiAlN Coated, 4 Flute, Fine Pitch, 1/4" Mill Dia, 3/4" LOC (MPN 4559111)

More from OSG

View all OSG parts
OSG Roughing End Mill: Cobalt, 6 Flute, Fine Pitch, 1-1/4" Mill Dia, 2" LOC, 4-1/2" OAL (MPN 4512100)
OSG
OSG Roughing End Mill: Cobalt, 6 Flute, Fine Pitch, 1-1/4" Mill Dia, 2" LOC, 4-1/2" OAL (MPN 4512100)
OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 5/16" Mill Dia, 1-3/8" LOC (MPN 4559508)
OSG
OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 5/16" Mill Dia, 1-3/8" LOC (MPN 4559508)
OSG Roughing End Mill: Cobalt, 4 Flute, Fine Pitch, 3/4" Mill Dia, 3" LOC, 5-1/4" OAL (MPN 4501100)
OSG
OSG Roughing End Mill: Cobalt, 4 Flute, Fine Pitch, 3/4" Mill Dia, 3" LOC, 5-1/4" OAL (MPN 4501100)
OSG Roughing End Mill: Cobalt, 6 Flute, 2" Mill Dia, 6" LOC, 9-3/4" OAL (MPN 4727100)
OSG
OSG Roughing End Mill: Cobalt, 6 Flute, 2" Mill Dia, 6" LOC, 9-3/4" OAL (MPN 4727100)
OSG Roughing End Mill: Cobalt, 4 Flute, Fine Pitch, 1/2" Mill Dia, 2" LOC, 4" OAL (MPN 4500300)
OSG
OSG Roughing End Mill: Cobalt, 4 Flute, Fine Pitch, 1/2" Mill Dia, 2" LOC, 4" OAL (MPN 4500300)
OSG Roughing End Mill: Cobalt, TiAlN Coated, 3 Flute, Fine Pitch, 3/4" Mill Dia, 3/4" LOC (MPN 4551211)
OSG
OSG Roughing End Mill: Cobalt, TiAlN Coated, 3 Flute, Fine Pitch, 3/4" Mill Dia, 3/4" LOC (MPN 4551211)
OSG Roughing End Mill: Cobalt, 6 Flute, Fine Pitch, 1-1/2" Mill Dia, 5" LOC, 7-1/2" OAL (MPN 4513900)
OSG
OSG Roughing End Mill: Cobalt, 6 Flute, Fine Pitch, 1-1/2" Mill Dia, 5" LOC, 7-1/2" OAL (MPN 4513900)
OSG Roughing End Mill: Cobalt, TiCN Coated, 5 Flute, Fine Pitch, 1" Mill Dia, 2" LOC, 4-1/2" OAL (MPN 4560508)
OSG
OSG Roughing End Mill: Cobalt, TiCN Coated, 5 Flute, Fine Pitch, 1" Mill Dia, 2" LOC, 4-1/2" OAL (MPN 4560508)