Norseman Drill & Tool Letter Sizes Type 190-PT Twist Drill Bit
High-Performance Drilling with a Titanium Nitride Edge
The Norseman Drill & Tool Letter Sizes Type 190-PT Twist Drill Bit is engineered for professionals who require unmatched durability, precision, and drilling efficiency. Featuring an advanced Titanium Nitride (TiN) coating, this high-performance bit delivers up to 500% longer tool life, making it the perfect choice for abrasive materials, high-speed production drilling, and demanding industrial environments.
Built for Precision and Production Performance
Manufactured in the USA from premium high-speed steel (HSS), the Type 190-PT is designed to withstand extreme heat, pressure, and continuous operation. The bit’s parabolic flute geometry enhances chip evacuation—critical for deep-hole drilling—allowing smoother cutting, reduced friction, and cooler operation. This superior chip flow minimizes clogging and decreases the need to repeatedly withdraw the bit, significantly increasing productivity on the job.
Letter-size dimensions make this bit ideal for applications requiring precise, non-fractional hole diameters, such as aerospace components, automotive fastener profiles, and engineered machinery assemblies. The 135° split point ensures fast, accurate, and walk-free starts, eliminating the need for pilot holes and improving overall drilling accuracy and efficiency.
Key Features
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Titanium Nitride (TiN) coating for extreme wear resistance and reduced heat buildup
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Parabolic flutes optimized for efficient deep-hole chip removal
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135° split-point tip for precise, quick, walk-free starts
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High-speed steel construction for toughness and long-lasting performance
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Letter-size increments for precision-driven industrial applications
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Proudly made in the USA with rigorous quality standards
Engineered for Professionals
Whether you’re drilling through stainless steel, alloy materials, or high-strength composites, the Norseman Type 190-PT Letter Size Twist Drill Bit delivers exceptional speed, accuracy, and durability.
Choose Norseman for industry-leading performance engineered to drill longer, cleaner, and smarter—every time.
