Norseman Drill & Tool Wire Sizes HSS Heavy-Duty NAS 907B Type 190-ALN Jobber Length Twist Bit
TiAlN-Coated Strength for High-Speed, High-Temperature Drilling
The Norseman Drill & Tool Wire Sizes HSS Heavy-Duty NAS 907B Type 190-ALN Jobber Length Twist Bit is purpose-built for professionals who demand exceptional precision, strength, and heat resistance. Proudly made in the USA and manufactured to strict NAS 907B aerospace specifications, this high-performance drill bit delivers outstanding consistency and durability across the most challenging industrial and manufacturing environments.
Engineered for Tough Metals and Extreme Conditions
Made from premium high-speed steel (HSS), the Type 190-ALN excels in drilling difficult materials such as:
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Stainless steel
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Titanium
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Inconel
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Hardened and high-tensile alloys
Its 135° self-centering split point ensures fast penetration, reduced thrust, and walk-free starts—making it ideal for precision drilling in high-strength metals where accuracy is critical.
TiAlN Coating for Superior Heat Resistance
The advanced Titanium Aluminum Nitride (TiAlN) coating sets this drill bit apart. As the bit reaches elevated temperatures, the TiAlN coating forms a protective aluminum oxide layer, providing:
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Extreme heat and oxidation resistance
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Increased surface hardness
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Reduced friction and improved chip evacuation
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Extended tool life under high-speed or dry drilling conditions
This makes the 190-ALN exceptionally well-suited for continuous production work and demanding machining environments.
Aerospace-Grade Precision
Each bit is precision-ground to exact NAS 907B tolerances, ensuring perfect balance, consistent hole sizing, and smooth operation. Available in wire gauge sizes, it provides the fine incremental control needed for precision-critical manufacturing and engineering applications.
Key Features
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TiAlN coating for unmatched heat and wear resistance
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Heavy-duty HSS construction for drilling hard, abrasive materials
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135° split point for accurate, self-centering starts
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Precision-ground to NAS 907B aerospace-grade standards
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Available in wire gauge sizes for fine-tolerance drilling
For high-speed, high-temperature drilling performance you can trust, the Norseman Type 190-ALN TiAlN Jobber Length Twist Bit delivers unmatched accuracy, durability, and American-made excellence.
