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OSG Square End Mill: Carbide, TiAlN Coated, 2 Flute, 7/16" Mill Dia, 1" LOC - General Purpose Carbide Square End Mills
OSGGeneral Purpose Carbide Square End Mills

OSG Square End Mill: Carbide, TiAlN Coated, 2 Flute, 7/16" Mill Dia, 1" LOC

The OSG Square End Mill is a general purpose carbide square end mill, TiAlN coated, with 2 flutes, a 7/16" mill diameter, 1" length of cut, and 2-3/4" overall length (MPN HP421-4375). 3G Electric interprets your…

SKU 3G-OTH-271977

Also listed as: HP4214375 · HP421 4375

Brand
OSG
Item
Square End Mill: Carbide, TiAlN Coated, 2 Flute, 7/16" Mill Dia, 1" LOC
Category
General Purpose Carbide Square End Mills
Available to Order
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Worldwide Shipping
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Technical specs
1-Day Quote
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OSG
Manufacturer Part Number
HP421-4375
Type
TiAlN Coated
Mill Dia
7/16"
OAL
2-3/4"
Flute
2
LOC
1"

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 carbide square end mill, TiAlN coated, with 2 flutes, a 7/16" mill diameter, 1" length of cut, and 2-3/4" overall length (MPN HP421-4375). 3G Electric interprets your demand for this cutting tool and sources it across 14 industrial departments, with specialist depth in machining and controls to support your application.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the OSG HP421-4375 square end mill used for?

The OSG HP421-4375 is a general-purpose carbide square end mill used for milling flat-bottomed slots, pockets, and profiles in metals and composites. Its TiAlN coating provides heat resistance for dry or wet machining of steels, stainless steels, and cast irons. It is suitable for CNC and manual milling machines in tool rooms and production environments.

What are the specifications of the OSG HP421-4375 square end mill?

The OSG HP421-4375 is a carbide square end mill with a TiAlN coating, 2 flutes, a 7/16" mill diameter, 1" length of cut (LOC), and 2-3/4" overall length (OAL). The manufacturer part number is HP421-4375. It is designed for general-purpose milling and is available from 3G Electric.

Where to buy the OSG HP421-4375 square end mill worldwide?

You can source the OSG HP421-4375 square end mill from 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. We supply this OSG end mill to customers in manufacturing, aerospace, and automotive industries.

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

To select the correct OSG square end mill, match the mill diameter and length of cut to your slot or pocket dimensions. For harder materials, use a TiAlN-coated carbide end mill like the HP421-4375. Consider the number of flutes: 2 flutes are ideal for slotting and softer materials. Always verify shank size compatibility with your collet or holder.

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 carbide 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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OSG Square End Mill: Carbide, TiAlN Coated, 2 Flute, 1/4" Mill Dia, 3/4" LOC, 2-1/2" OAL (MPN HP421-2500)

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