CBN Series

Product Catalog

End Mills
- End mill for mold steel End mill for stainless steel End mill for quenched steel End mill for carbon steel End mill for hardened steel End mill for aluminum End Mill for graphite End mill for titanium alloy PCD diamond end mill
Hole Making
- Carbide drill bits Boring Cutter Reamer
Carbide Insert
- P Series Insert For Steel M Series Insert For Stainless Steel K Series Insert For Cast Iron N Series Insert for Aluminum Alloy H Series Insert for Hardened Steel S Series Insert for High-temp Alloy
Tool Holder
- Power Tool Holder Hydraulic Tool Holder Shrink Tool Holder
Non-standard Milling Tools
- Milling Tools for Automotive Milling Tools for 3C Electronics Milling Tools for Aerospace Milling Tools for Eyewear Milling Tools for Mold & Die Milling Tools for Medical

End mill for quenched steel

As a professional carbide end mill manufacturer in China, Dohre’s provides high-performance cutting tools specially engineered for quenched and hardened steel.
Our end mills combine superior toughness, wear resistance, and heat stability to deliver consistent performance when machining steels above 55 HRC — ensuring precision, productivity, and extended tool life for your most demanding operations.

Why Quenched Steel Needs Special Cutting Tools

Quenched or hardened steels are known for their extreme hardness and abrasive nature. Conventional tools quickly lose sharpness, generate excessive heat, and fail to maintain dimensional accuracy.

Dohre’s end mills for quenched steel are built using ultra-fine tungsten carbide substrates with high hardness (≥ 92 HRA) and advanced TiSiN or AlTiN coatings.
These tools maintain edge integrity and cutting performance even at elevated temperatures, making them ideal for high-speed or dry machining of hardened materials.

Key Features of Dohre’s Quenched Steel End Mills

High-Hardness Substrate: Made from 100% micro-grain tungsten carbide for superior strength and durability.
Advanced Coatings (TiSiN / AlTiN): Excellent oxidation resistance and thermal stability up to 1000 °C.
Optimized Edge Geometry: Sharp but reinforced cutting edge ensures low cutting force and high precision.
High-Speed Compatibility: Designed for efficient machining at elevated RPMs without edge chipping.
Stable Tool Life: Reliable performance for continuous or interrupted cutting.

Every Dohre’s carbide end mill is ground on 5-axis CNC equipment to ensure perfect symmetry and dimensional consistency.

Dohre End Mill Avdantages

Material Excellence
We strictly select 100% virgin tungsten carbide as the raw material for all our milling tools. Compared to recycled powders, virgin carbide offers significantly better hardness, toughness, and stability. This ensures excellent wear resistance, consistent quality, and longer tool life, even in high-speed or high-hardness machining environments.
Advanced Imported Equipment
Our production line features state-of-the-art CNC grinding machines imported from Germany, Koera, including brands like WALTER, ANCA, and DECKEL. These high-precision machines enable us to achieve superior tool geometry, tight tolerances, and stable quality in mass production to meeting the demands of even the most challenging machining applications.
In-House Coating Equipment
Our factory is equipped with advanced PVD and CVD coating systems, allowing us to apply and control various high-performance coatings such as AlTiN, TiSiN, and nano-layer coatings. With full in-house capability, we can optimize coatings based on different materials—whether for steel, aluminum, or hardened alloys, ensuring better heat resistance, smoother chip flow, and extended tool performance.
Strict Quality Control
Every tool goes through multiple quality inspection stages, from raw material testing and in-process checks to final dimensional and coating inspections. Our comprehensive QC system ensures that only fully qualified products leave the factory.