Norseman Drill & Tool Letter Sizes HSS Heavy-Duty NAS 907B Type 190-ACN Titanium Carbon Nitride Jobber Length Twist Bit

Norseman Drill & Tool Letter Sizes HSS Heavy-Duty NAS 907B Type 190-ACN Jobber Length Twist Bit: TiCN-Coated Precision and Durability for Demanding Applications

The Norseman Drill & Tool Letter Sizes HSS Heavy-Duty NAS 907B Type 190-ACN Jobber Length Twist Bit is engineered for professionals who demand precision, power, and longevity. Proudly made in the USA, this high-performance bit is built to NAS 907B aerospace-grade specifications, ensuring exceptional accuracy, durability, and consistency across all letter-size increments.

Constructed from premium high-speed steel (HSS), the Type 190-ACN is designed for heavy-duty drilling in challenging materials such as stainless steel, titanium, and hardened alloys. The 135° self-centering split point delivers fast, accurate starts and reduces thrust pressure—eliminating walking and ensuring cleaner, more precise hole finishes.

The standout feature of this bit is its Titanium Carbon Nitride (TiCN) coating, which provides superior surface hardness, lubricity, and heat resistance. This advanced coating allows for higher cutting speeds, enhanced chip flow, and cooler operation while significantly extending tool life. TiCN also improves wear resistance, making it ideal for high-speed or continuous drilling applications where performance and consistency are critical.

Each bit is precision-ground to exact aerospace tolerances, ensuring smooth, balanced operation and precise hole geometry. Available in letter-size dimensions, these bits are perfect for machinists, fabricators, and maintenance professionals who rely on exact sizing and exceptional performance.

Key Features:

• Titanium Carbon Nitride (TiCN) coating for hardness, lubricity, and wear resistance

• Heavy-duty HSS construction for drilling hard metals and alloys

• 135° split point for accurate starts and reduced thrust

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

• Available in letter sizes for precision-critical applications

For unmatched accuracy, strength, and tool life, the Norseman Drill & Tool Letter Sizes HSS Heavy-Duty NAS 907B Type 190-ACN TiCN Jobber Length Twist Bit delivers the performance professionals trust in every cut.