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OSG Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 5/16" 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, 5/16" Mill Dia

The OSG Roughing End Mill is a general-purpose cobalt end mill with a TiCN coating, fine pitch, and 4 flutes. It has a 5/16" mill diameter and a 1-3/8" length of cut (MPN 4559508).

SKU 3G-OTH-269034

Brand
OSG
Item
Roughing End Mill: Cobalt, TiCN Coated, 4 Flute, Fine Pitch, 5/16" 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
4559508
Type
TiCN Coated, Fine Pitch
Mill Dia
5/16"
Flute
4
LOC
1-3/8"

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 TiCN coating, fine pitch, and 4 flutes. It has a 5/16" mill diameter and a 1-3/8" length of cut (MPN 4559508).

Frequently Asked Questions

What is an OSG roughing end mill used for?

An OSG roughing end mill is used for high-speed material removal in machining operations. Its coarse tooth design and TiCN coating reduce cutting forces and heat, making it ideal for roughing ferrous metals in industrial manufacturing, tool and die, and general engineering applications.

What are the specifications of the OSG 4559508 roughing end mill?

The OSG 4559508 roughing end mill has a 5/16" mill diameter, 1-3/8" length of cut, 4 flutes, fine pitch, and TiCN coating on cobalt substrate. It is designed for general purpose roughing in steel and stainless steel, providing durability and chip evacuation.

Where to buy OSG roughing end mills worldwide?

3G Electric supplies OSG roughing end mills worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the OSG 4559508 or other OSG cutting tools.

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

Select an OSG roughing end mill based on workpiece material, required stock removal, and machine rigidity. For steels, choose TiCN-coated cobalt with fine pitch for better finish. Match flute count and diameter to your operation's depth of cut and chip load requirements.

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, TiCN Coated, 4 Flute, Fine Pitch, 5/8" Mill Dia, 1-5/8" LOC (MPN 4550508)
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