Norseman Drill & Tool HSS Heavy-Duty NAS 907B Type 190-ACN Jobber Length Twist Bit
TiCN-Coated Strength for Superior Wear Resistance and Precision
The Norseman Drill & Tool HSS Heavy-Duty NAS 907B Type 190-ACN Jobber Length Twist Bit is engineered for professionals who demand extreme durability, aerospace-level precision, and long-lasting performance in the toughest drilling conditions. Proudly Made in the USA, this premium drill bit is manufactured to NAS 907B aerospace specifications, ensuring exceptional accuracy, balance, and consistency across demanding industrial applications.
Heavy-Duty Construction for Tough Metals
Built from high-speed steel (HSS), the Type 190-ACN is designed for superior strength and wear resistance—making it ideal for drilling stainless steel, titanium, hardened alloys, and other high-tensile materials. Its heavy-duty web enhances rigidity, reduces breakage, and ensures stable, reliable performance in both hand-held and machine drilling.
The 135° self-centering split point provides fast, walk-free starts, minimizes thrust pressure, and improves hole accuracy. This feature is crucial for penetrating hard surfaces without skidding, while accelerating drilling speed and reducing operator fatigue.
Advanced TiCN Coating for Maximum Tool Life
What elevates this bit above standard heavy-duty drills is its Titanium Carbon Nitride (TiCN) coating. This cutting-edge finish:
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Increases surface hardness dramatically
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Reduces friction for smoother, cooler cutting
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Enhances chip evacuation
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Allows for higher cutting speeds
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Extends tool life significantly—especially in abrasive or high-temperature environments
The TiCN coating ensures the bit stays sharper longer, even during continuous or production-level drilling.
Precision-Ground for Aerospace Performance
Each Type 190-ACN drill is precision-ground to strict NAS 907B tolerances, delivering exceptional concentricity, balance, and finish quality for mission-critical drilling performance.
Key Features
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TiCN coating for extreme hardness, lubricity & heat resistance
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Heavy-duty HSS construction for drilling tough metals
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135° split point for fast, accurate, walk-free starts
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Precision-ground to NAS 907B aerospace standards
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Long tool life and superior wear resistance
For unmatched durability, accuracy, and high-speed performance, choose the Norseman Type 190-ACN Jobber Length Twist Bit—engineered to excel where ordinary drill bits fail.
