Norseman Drill & Tool Fractional Sizes HSS Heavy-Duty NAS 907B Type 190-ACN Titanium Aluminum Nitride (TiAIN) Jobber Length Twis
Norseman Drill & Tool Fractional Sizes HSS Heavy-Duty NAS 907B Type 190-ACN Jobber Length Twist Bit: TiAlN-Coated Power for Extreme Performance and Durability
The Norseman Drill & Tool Fractional Sizes HSS Heavy-Duty NAS 907B Type 190-ACN Jobber Length Twist Bit is precision-engineered for professionals who demand exceptional strength, accuracy, and heat resistance in the most demanding drilling applications. Proudly made in the USA, this high-performance bit is manufactured to NAS 907B aerospace-grade specifications, ensuring premium quality, consistency, and reliability across all fractional sizes.
Built from premium high-speed steel (HSS), the Type 190-ACN offers the toughness and cutting strength needed for heavy-duty drilling in hard materials such as stainless steel, titanium, Inconel, and hardened alloys. Its 135° self-centering split point ensures fast, accurate starts, reduces thrust, and prevents walking—resulting in cleaner, more precise holes and extended tool life.
The Titanium Aluminum Nitride (TiAlN) coating provides exceptional wear resistance, lubricity, and heat protection. This advanced coating forms a hard aluminum oxide layer during operation, allowing the bit to perform efficiently at higher cutting speeds and extreme temperatures. The TiAlN coating also enhances chip flow, reduces friction, and ensures superior performance in dry or high-speed machining environments.
Each bit is precision-ground to tight aerospace tolerances for smooth, balanced drilling and consistent accuracy. Perfect for industrial, fabrication, and maintenance work, this drill bit is designed to exceed professional expectations.
Key Features:
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Titanium Aluminum Nitride (TiAlN) coating for high heat and wear resistance
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Heavy-duty HSS construction for strength and long tool life
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135° split point for accurate, self-centering starts
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Precision-ground to NAS 907B aerospace-grade tolerances
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Ideal for stainless steel, titanium, and hardened alloys
For unmatched precision, durability, and heat resistance, the Norseman Drill & Tool Fractional Sizes HSS Heavy-Duty NAS 907B Type 190-ACN TiAlN Jobber Length Twist Bit delivers superior American-made performance.
