Norseman Drill & Tool HD Super Premium NAS 907B Type 190-AG Jobber Length Twist Bit
Magnum Power for the Toughest Drilling Applications
The Norseman Drill & Tool HD Super Premium NAS 907B Type 190-AG Jobber Length Twist Bit is engineered for professionals who demand maximum strength, durability, and drilling efficiency. As part of Norseman’s Magnum Super Premium Series, this elite-grade bit is manufactured in the USA and built to outperform cobalt drills in the harshest industrial environments—especially when cutting work-hardening stainless steel, high-tensile alloys, and other difficult metals.
Magnum Construction for Extreme Performance
Crafted from high-molybdenum tool steel, the 190-AG undergoes Norseman’s advanced nitro-carburizing surface treatment, creating a case-hardened structure that dramatically increases hardness, lubricity, and wear resistance. This proprietary Magnum treatment allows the bit to cut cleaner, cooler, and longer, even in continuous or high-temperature drilling conditions.
Unlike traditional cobalt bits, this heavy-duty design features low-temperature stress relief, which improves toughness and reduces brittleness—two critical advantages when working with hardened or abrasive materials. The enhanced lubricity reduces friction, improves chip evacuation, and helps prevent tool failure under load.
Precision Control with a 135° Split Point
The 135° split point ensures fast, accurate, walk-free starts while minimizing thrust pressure. This makes the bit ideal for both machine and hand-held drilling, especially in applications requiring precision hole placement and consistent cutting action.
Meeting NAS 907B aerospace specifications, each bit is precision-ground to deliver exceptional balance, concentricity, and dimensional accuracy. The signature black and gold finish adds corrosion protection and enhances chip flow for smoother overall performance.
Key Features
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Nitro-carburized Magnum treatment for extreme hardness & lubricity
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Outperforms cobalt drills in tough, work-hardening metals
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Low-temperature stress relief for enhanced toughness
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135° split point for precise, walk-free drilling
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Manufactured to NAS 907B aerospace-grade standards
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Made in the USA
For the toughest jobs and the highest expectations, the Norseman HD Super Premium Type 190-AG delivers unmatched cutting power, tool life, and professional-grade performance.
