YG-1General Purpose Cobalt Roughing End Mills

YG-1 Roughing End Mill: Cobalt, TiN Coated, 5 Flute, 7/8" Mill Dia, 1-7/8" LOC

SKU 3G-OTH-268965

Also listed as: 73391 CN · 73391-CN

Brand

YG-1

Item

Roughing End Mill: Cobalt, TiN Coated, 5 Flute, 7/8" Mill Dia, 1-7/8" LOC

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

YG-1

Manufacturer Part Number

73391CN 

Type

TiN Coated 

Mill Dia

7/8" 

OAL

4-1/8" 

Flute

5

LOC

1-7/8" 

Technical Documents

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YG-1 Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The YG-1 Roughing End Mill is a TiN Coated, 5 Flute, 7/8" Mill Dia general purpose cobalt roughing end mill with a 1-7/8" LOC and 4-1/8" OAL (MPN 73391CN). 3G Electric sources this YG-1 tool across 14 industrial departments — and we supply far more than is listed — with specialist depth in cutting tools as an authorized distributor.

Frequently Asked Questions

What is the YG-1 Roughing End Mill 73391CN used for?

The YG-1 73391CN is a general-purpose roughing end mill used for heavy material removal in metalworking. Its TiN coating and cobalt construction suit ferrous metals, stainless steel, and high-temperature alloys in industrial machining applications.

What are the specifications of the YG-1 Roughing End Mill 73391CN?

This YG-1 end mill has a 7/8" mill diameter, 1-7/8" length of cut, and 4-1/8" overall length. It features 5 flutes, a TiN coating, and is made from cobalt steel. The manufacturer part number is 73391CN.

Where to buy the YG-1 Roughing End Mill 73391CN worldwide?

3G Electric supplies the YG-1 73391CN roughing 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.

How to select the right YG-1 roughing end mill for your application?

Select based on material, diameter, flute count, and coating. For heavy roughing in steel, the YG-1 73391CN with TiN coating and 5 flutes provides good chip evacuation and tool life. Match the shank size to your collet and consider coolant requirements.

Used in

Common applications for YG-1

Die and mold machining — YG-1 cobalt ball end mills (e.g., MPN 43297CC) for contouring and finishing cavities in hardened tool steels.

Aerospace component production — YG-1 cobalt square end mills (e.g., MPN 04338) for milling titanium and nickel-based alloys.

Automotive part manufacturing — YG-1 HSS square end mills (e.g., MPN 07228) for high-volume machining of cast iron and steel components.

General fabrication — YG-1 double-end HSS end mills (e.g., MPN 13040) for slotting and profiling in mild steel and aluminum.

Roughing operations — YG-1 cobalt roughing end mills (e.g., MPN 60321) for rapid material removal in stainless steel and alloy steels.

Precision finishing — YG-1 TiN-coated HSS end mills (e.g., MPN 12059HN) for achieving tight tolerances on ferrous workpieces.

YG-1 Products

3G Electric supplies YG-1 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.

Browse all YG-1 products →Contact our engineers →