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

Norseman Drill & Tool Wire Sizes HSS Heavy-Duty NAS 907B Type 190 Jobber Length Twist Bit: Precision, Strength, and Durability for Demanding Applications

The Norseman Drill & Tool Wire Sizes HSS Heavy-Duty NAS 907B Type 190 Jobber Length Twist Bit is designed for professionals who require unmatched accuracy, durability, and performance. Proudly made in the USA, this drill bit is manufactured to NAS 907B aerospace-grade specifications, ensuring exceptional quality, consistency, and precision for industrial and maintenance applications.

Crafted from premium high-speed steel (HSS), the Type 190 is built to withstand tough drilling conditions, including hardened metals, stainless steel, and high-tensile alloys. The heavy-duty construction provides maximum strength and rigidity, while maintaining superior cutting performance through continuous use.

Featuring a 135° self-centering split point, this bit ensures quick, accurate starts without walking, reducing thrust and providing smoother penetration. Its precision-ground geometry delivers optimal chip evacuation, minimizing friction and heat buildup during drilling—resulting in extended tool life and a cleaner, more precise hole finish.

The black oxide surface finish improves lubricity, increases wear resistance, and enhances corrosion protection. It also helps improve chip flow for smoother drilling in both hand-held and machine applications. Each bit is ground to aerospace-level tolerances, ensuring consistency across all wire gauge sizes for precision-critical work.

Key Features:

• Heavy-duty HSS construction for superior strength and durability

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

• Black oxide finish improves lubricity, chip evacuation, and wear resistance

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

• Available in wire gauge sizes for precision hole sizing

For professionals seeking accuracy, longevity, and smooth performance, the Norseman Drill & Tool Wire Sizes HSS Heavy-Duty NAS 907B Type 190 Jobber Length Twist Bit delivers American-made quality and reliability you can trust.