Norseman Drill & Tool Fractional Sizes HSS Heavy-Duty NAS 907B Type 190 Jobber Length Twist Bit
Norseman Drill & Tool Fractional Sizes HSS Heavy-Duty NAS 907B Type 190 Jobber Length Twist Bit: Engineered for Strength, Accuracy, and Long Life
The Norseman Drill & Tool Fractional Sizes HSS Heavy-Duty NAS 907B Type 190 Jobber Length Twist Bit is designed for professionals who demand exceptional drilling performance, durability, and precision. Proudly made in the USA, this heavy-duty bit is manufactured to meet NAS 907B aerospace-grade specifications, ensuring unmatched quality and consistency across industrial, construction, and maintenance applications.
Crafted from premium high-speed steel (HSS), the Type 190 is built to handle tougher materials, including stainless steel, alloy steels, and other hard metals. Its heavy-duty construction provides superior strength, while the 135° self-centering split point allows for accurate starts, reduced thrust, and easier penetration—eliminating the need for a center punch and minimizing walking on hard or curved surfaces.
The black oxide finish enhances lubricity, increases wear resistance, and improves chip evacuation for cleaner, smoother drilling performance. This finish also adds a layer of corrosion protection, ensuring longer tool life and consistent results even in demanding work environments.
Each bit is precision-ground to aerospace tolerances for balance, stability, and accuracy, making it ideal for professional machinists, fabricators, and maintenance crews who require dependable tools for critical work.
Key Features:
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Heavy-duty HSS construction for drilling tough materials
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135° self-centering split point for reduced thrust and precision starts
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Black oxide surface finish improves wear resistance and chip flow
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Manufactured to NAS 907B aerospace-grade specifications
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Available in fractional Fractional sizes for versatile use
When performance and reliability matter, the Norseman Drill & Tool Fractional Sizes HSS Heavy-Duty NAS 907B Type 190 Jobber Length Twist Bit delivers the power, precision, and durability that professionals trust on every job.
