HRC70 Thread Mill

Breaking Boundaries in Machining: Reliable Threading for Materials up to 70 HRC

Product Overview:

SAMHO’s HRC70 series represents the pinnacle of ultra-hard thread milling technology. Designed to conquer materials traditionally considered “forbidden zones” for threading—including HRC68 high-speed steel, ultra-high hardness quenched steel, and specialized mold steels—this tool redefines application boundaries. Featuring a precision 2-tooth design and high-performance wear-resistant coatings, it effectively solves the common industry pains of tool chipping and difficult one-pass formation in extreme-hardness workpieces.

Core Technical Features

Optimized 2-Tooth Design for Maximum Stability

Balanced Load & Chip Evacuation: Unlike multi-flute structures, our 2-tooth geometry distributes the cutting load more reasonably in ultra-hard materials. This results in a “gentler” cutting process with significantly reduced vibration. The ample chip space prevents adhesion and scratching, ensuring superior surface quality and process stability.

Unmatched Tool Life and Cost Efficiency

Reducing Per-Hole Machining Costs: By utilizing a highly wear-resistant substrate combined with an optimized coating, this cutter maintains a stable cutting state even under extreme stress. It significantly reduces the risk of micro-chipping compared to ordinary thread mills, making it an ideal choice for mass production and high-value workpiece processing where minimizing the “total cost per hole” is critical.

Guaranteed Thread Accuracy & Quality

100% Go/No-Go Gauge Compliance: The cutting edge profile is engineered for high consistency with standard metric thread contours. Each machined hole delivers high dimensional consistency and a complete internal profile, effectively avoiding rework and scrap in precision mold and assembly industries.

Superior Safety and Flexibility vs. Traditional Tapping

Risk Mitigation for High-Value Parts: Thread milling offers far greater safety than tapping. A single tool can cover multiple thread sizes through programming, eliminating the risk of tap breakage. Even in the event of tool malfunction, the workpiece remains undamaged—a vital feature for high-hardness, high-cost components.

Industry Applications

• High-End Die & Mold: Specifically developed for threading in hardened mold bases and inserts where high-end imported tools were previously the only option.

• Precision Aerospace Components: Reliable threading in high-strength, heat-treated alloys that demand zero-defect production.

• High-Speed Steel Tooling: Capable of machining threads directly into HRC68 high-speed steel components, expanding design possibilities for tool manufacturers.

Technical Specifications Matrix