Norseman Drill & Tool Fractional Sizes Premium NAS 907B Type 190-CN Jobber Length Twist Drill
Norseman Drill & Tool Fractional Sizes Premium NAS 907B Type 190-CN Jobber Length Twist Drill: CN-TECH™ Coated Precision for Demanding Applications
The Norseman Drill & Tool Fractional Sizes Premium NAS 907B Type 190-CN Jobber Length Twist Drill delivers exceptional performance, precision, and durability for industrial professionals who demand the best. Engineered and manufactured in the USA, this high-performance drill meets NAS 907B aerospace standards, making it ideal for applications requiring exacting accuracy, strength, and consistency.
Crafted from premium high-speed steel (HSS), the 190-CN twist drill features Norseman’s advanced CN-TECH™ surface treatment, which enhances hardness, lubricity, and wear resistance. This specialized coating reduces friction and heat buildup, allowing for cooler, cleaner drilling and extended tool life—even when cutting tough materials such as stainless steel, titanium, and high-tensile alloys.
The 135° split point ensures quick, accurate starts and minimizes walking on curved or hard surfaces. Precision-ground flutes promote smooth chip evacuation, reducing clogging and maintaining efficient cutting performance in high-speed or production environments. These design features make the 190-CN drill ideal for aerospace, fabrication, and manufacturing operations where precision and efficiency are critical.
The black and bronze oxide finish not only improves corrosion resistance but also enhances chip flow, ensuring consistent drilling results over time. Available in fractional size increments, these drills provide a full range of options for professional machinists and metalworkers.
Key Features:
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Meets NAS 907B aerospace-grade drilling standards
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CN-TECH™ surface treatment for superior hardness and lubricity
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135° split point for fast starts and precision accuracy
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Premium HSS construction for strength and heat resistance
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Black and bronze oxide finish for improved chip flow and corrosion protection
For professional-grade accuracy and endurance, the Norseman Drill & Tool Fractional Sizes Premium NAS 907B Type 190-CN Jobber Length Twist Drill delivers unmatched performance in the toughest drilling applications.
