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OSG Square End Mill: Cobalt, TiN Coated, 4 Flute, 1/4" Mill Dia, 5/8" LOC - General Purpose Cobalt Square End Mills
OSGGeneral Purpose Cobalt Square End Mills

OSG Square End Mill: Cobalt, TiN Coated, 4 Flute, 1/4" Mill Dia, 5/8" LOC

The OSG Square End Mill is a general-purpose cobalt square end mill, TiN coated, with 4 flutes, a 1/4" mill diameter, 5/8" length of cut, and 2-7/16" overall length (MPN 5400305). 3G Electric interprets customer…

SKU 3G-OTH-270339

Brand
OSG
Item
Square End Mill: Cobalt, TiN Coated, 4 Flute, 1/4" Mill Dia, 5/8" LOC
Category
General Purpose Cobalt Square End Mills
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Technical specs
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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
5400305
Type
TiN Coated
Mill Dia
1/4"
OAL
2-7/16"
Flute
4
LOC
5/8"

Technical Documents

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

Product Description

The OSG Square End Mill is a general-purpose cobalt square end mill, TiN coated, with 4 flutes, a 1/4" mill diameter, 5/8" length of cut, and 2-7/16" overall length (MPN 5400305). 3G Electric interprets customer demand and delivers this genuine industrial cutting tool across 14 departments, with specialist depth in combustion, pumps and controls as an authorised distributor.

Frequently Asked Questions

What is the OSG 5400305 square end mill used for?

The OSG 5400305 is a general-purpose cobalt square end mill used for milling slots, profiling, and contouring in ferrous and non-ferrous materials. Its TiN coating reduces friction and extends tool life in steel, stainless steel, and cast iron applications.

What are the specifications of the OSG 5400305 end mill?

The OSG 5400305 is a TiN-coated cobalt square end mill with a 1/4" mill diameter, 4 flutes, 5/8" length of cut, and 2-7/16" overall length. The manufacturer part number is 5400305. It is designed for general-purpose milling in industrial environments.

Where to buy the OSG 5400305 end mill worldwide?

3G Electric supplies the OSG 5400305 end mill worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time.

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

Select an OSG square end mill based on material hardness, required finish, and machine rigidity. For general-purpose steel milling, the TiN-coated 4-flute design offers good chip evacuation and tool life. 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 square 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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Cross-referenced by specification & description
OSG Square End Mill: Cobalt, TiN Coated, 4 Flute, 5/16" Mill Dia, 3/4" LOC, 2-1/2" OAL (MPN 5400405)
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OSG Square End Mill: Cobalt, TiN Coated, 4 Flute, 7/16" Mill Dia, 1" LOC, 2-11/16" OAL (MPN 5400605)

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