YG-1Double-End High-Speed Steel Square End Mills

YG-1 Square End Mill: High Speed Steel, TiN Coated, Double End, 4 Flute, 3/4" Mill Dia

SKU 3G-OTH-250956

Also listed as: 12109 HN · 12109-HN

Brand

YG-1

Item

Square End Mill: High Speed Steel, TiN Coated, Double End, 4 Flute, 3/4" Mill Dia

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

12109HN 

Type

TiN Coated, Double End 

Mill Dia

3/4" 

Flute

4

LOC

1-5/8" 

Technical Documents

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YG-1 Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The YG-1 Square End Mill is a double-end high-speed steel end mill with TiN coating, 4 flutes, a 3/4" mill diameter, and a 1-5/8" length of cut (MPN 12109HN). 3G Electric interprets this demand and sources it across 14 industrial departments, with specialist depth in cutting tools as part of our broader industrial supply capability.

Frequently Asked Questions

What is the YG-1 Square End Mill 12109HN used for?

The YG-1 12109HN is a double-end high-speed steel square end mill used for general-purpose milling of steel, cast iron, and non-ferrous materials. Its TiN coating reduces friction and extends tool life. Common applications include slotting, profiling, and contouring in industrial machining.

What are the specifications of the YG-1 Square End Mill 12109HN?

The YG-1 12109HN is a double-end square end mill made of high-speed steel with TiN coating. It has a 3/4" mill diameter, 1-5/8" length of cut, and 4 flutes. The manufacturer part number is 12109HN. It is designed for use in CNC and manual milling machines.

Where to buy YG-1 Square End Mill 12109HN worldwide?

You can source the YG-1 12109HN square end mill through 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 on this YG-1 cutting tool.

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

Select the YG-1 end mill based on material, coating, and geometry. For general milling of steel, the TiN-coated HSS 12109HN with 4 flutes provides good chip evacuation and finish. Match the mill diameter and length of cut to your workpiece. Consult YG-1's technical data for optimal speeds and feeds.

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 double-end high-speed steel square 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 →