Norseman Drill & Tool Wire Sizes HSS Heavy-Duty NAS 907B Type 190-ALN Titanium Aluminum Nitride Jobber Length Twist Bit

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 engineered for precision, durability, and exceptional heat resistance in the most demanding drilling applications. Proudly made in the USA, this professional-grade drill bit meets NAS 907B aerospace specifications, ensuring accuracy, reliability, and long service life in industrial and manufacturing environments.

Constructed from premium high-speed steel (HSS), the Type 190-ALN is built to withstand heavy-duty use on tough materials like stainless steel, titanium, Inconel, and hardened alloys. Its 135° self-centering split point ensures fast starts and reduced thrust pressure, eliminating the need for a center punch while preventing walking and improving hole accuracy.

The Titanium Aluminum Nitride (TiAlN) coating provides outstanding hardness, lubricity, and oxidation resistance. This advanced coating forms a hard, heat-resistant aluminum oxide layer during operation, allowing for higher cutting speeds and superior performance at elevated temperatures. TiAlN also extends tool life, reduces friction, and enhances chip flow for smoother, more efficient drilling—even in dry or high-speed machining environments.

Each bit is precision-ground to exact aerospace tolerances for balance, stability, and consistent hole sizing. Available in wire gauge sizes, it offers the fine incremental control professionals need for precision-critical work.

Key Features:

• Titanium Aluminum Nitride (TiAlN) coating for extreme heat and wear resistance

• Heavy-duty HSS construction for superior strength and toughness

• 135° split point for self-centering accuracy and reduced thrust

• Precision-ground to NAS 907B aerospace-grade standards

• Available in wire gauge sizes for precision drilling applications

For superior performance under heat and pressure, the Norseman Drill & Tool Wire Sizes HSS Heavy-Duty NAS 907B Type 190-ALN TiAlN Jobber Length Twist Bit delivers unmatched precision and American-made reliability.