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OSG HP411-1378 Pencil-Neck Carbide Square End Mill for Hardened Materials - Pencil-Neck Carbide Square End Mills for Hardened Materials
OSGPencil-Neck Carbide Square End Mills for Hardened Materials

OSG HP411-1378 Pencil-Neck Carbide Square End Mill for Hardened Materials

The OSG Square End Mill is a TiAlN Coated, 4-flute, pencil-neck carbide end mill for hardened materials, with a 3.5 mm mill diameter, 5.3 mm LOC, and 70 mm OAL (MPN HP411-1378).

SKU 3G-OTH-404069

Also listed as: HP4111378 · HP411 1378

Brand
OSG
Item
HP411-1378 Pencil-Neck Carbide Square End Mill for Hardened Materials
Part Number
HP411-1378
Category
Pencil-Neck Carbide Square End Mills for Hardened Materials
Available to Order
Also known as:HP411-1378OSG
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Technical Specifications

OSG
Manufacturer Part Number
HP411-1378
Type
TiAlN Coated
Mill Dia
3.5 mm
OAL
70 mm
Flute
4
LOC
5.3 mm

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

Product Description

The OSG Square End Mill is a TiAlN Coated, 4-flute, pencil-neck carbide end mill for hardened materials, with a 3.5 mm mill diameter, 5.3 mm LOC, and 70 mm OAL (MPN HP411-1378).

Frequently Asked Questions

What is the OSG HP411-1378 square end mill used for?

The OSG HP411-1378 is a carbide square end mill designed for precision milling of hardened materials. Its TiAlN coating and 4-flute geometry suit high-speed machining of tool steels, die steels, and pre-hardened alloys up to 65 HRC. The pencil-neck design provides reach in deep cavities.

What are the specifications of the OSG HP411-1378 end mill?

The OSG HP411-1378 is a TiAlN-coated carbide square end mill with a 3.5 mm mill diameter, 5.3 mm length of cut, and 70 mm overall length. It has 4 flutes and a pencil-neck design for hardened materials. The manufacturer part number is HP411-1378.

Where to buy the OSG HP411-1378 end mill worldwide?

3G Electric supplies the OSG HP411-1378 end mill worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time. We source and deliver this precision tool to any country.

How to select the correct OSG end mill for hardened steel?

For hardened steel, choose a carbide end mill with TiAlN coating like the OSG HP411-1378. Match the mill diameter to your feature size and the length of cut to your depth. Use 4-flute tools for finishing and ensure your spindle speed and feed rate align with OSG's recommendations for the material hardness.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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OSG Products

3G Electric supplies OSG pencil-neck carbide square end mills for hardened materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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