Norseman Drill & Tool HSS Heavy-Duty NAS 907B Type 190-ALN Jobber Length Twist Bit
TiAlN-Coated Power for Extreme Drilling Performance
The Norseman Drill & Tool HSS Heavy-Duty NAS 907B Type 190-ALN Jobber Length Twist Bit is engineered for professionals who require exceptional durability, precision, and heat resistance in the most demanding drilling applications. Proudly Made in the USA, this high-performance drill bit conforms to NAS 907B aerospace specifications, delivering the accuracy, strength, and reliability needed in advanced manufacturing and industrial environments.
Built for Tough Metals and Extreme Conditions
Crafted from premium high-speed steel (HSS), the Type 190-ALN is designed for drilling in stainless steel, titanium, high-tensile alloys, and other abrasive materials. Its heavy-duty web construction provides superior rigidity and reduced breakage under load, making it ideal for high-torque and continuous-use operations.
The 135° self-centering split point ensures fast, precise starts with reduced walking and lower thrust pressure. This results in cleaner holes, improved control, and faster penetration, even on curved or hardened surfaces.
Advanced TiAlN Coating for High-Temperature Performance
The standout feature of the 190-ALN is its Titanium Aluminum Nitride (TiAlN) coating—a premium finish engineered for extreme heat and wear resistance. During operation, TiAlN forms a hard aluminum oxide layer that:
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Withstands elevated temperatures
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Improves lubricity in dry or high-friction drilling
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Allows significantly higher cutting speeds
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Extends tool life in abrasive materials
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Maintains edge sharpness longer
This coating makes the Type 190-ALN ideal for high-speed CNC drilling, production environments, and applications where coolant use is limited.
Aerospace-Grade Precision
Each bit is precision-ground to strict NAS 907B tolerances for exceptional balance, chip evacuation, and dimensional accuracy.
Key Features
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TiAlN coating for extreme heat, wear resistance & longer life
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Heavy-duty HSS construction for drilling tough metals
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135° split point for accurate, walk-free starts
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Manufactured to NAS 907B aerospace-grade specifications
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Ideal for stainless steel, titanium & high-tensile alloys
For uncompromising strength, precision, and longevity, the Norseman Type 190-ALN Jobber Length Twist Bit delivers elite, professional-grade drilling performance in the harshest environments.
