Norseman Drill & Tool Wire Sizes Type 340-A Twist Drill Bit

Norseman Drill & Tool Wire Gauge Sizes Type 340-A Twist Drill Bit: Aerospace-Grade Precision and Long-Lasting Durability

The Norseman Drill & Tool Wire Gauge Sizes Type 340-A Twist Drill Bit is engineered to deliver exceptional precision, strength, and reliability for professional machinists, fabricators, and aerospace manufacturers. Proudly made in the USA, this high-performance drill bit is manufactured to NAS 907A aerospace specifications, ensuring superior accuracy, durability, and consistency for critical drilling applications.

Crafted from premium high-speed steel (HSS), the Type 340-A offers outstanding toughness and cutting performance. It’s ideal for drilling through a wide range of materials, including steel, aluminum, brass, and other non-ferrous metals. The 118° standard point geometry provides smooth, controlled starts with minimal walking, resulting in precise, clean holes and improved drilling efficiency.

The black oxide finish enhances the bit’s performance by increasing wear resistance and reducing friction. This finish improves lubricity and chip flow, allowing for cooler operation, reduced heat buildup, and longer tool life. The result is smoother drilling and superior durability, even in high-volume or continuous-use environments.

Each bit is precision-ground to exact aerospace tolerances for perfect balance, stability, and concentricity. Available in wire gauge sizes, the Type 340-A series offers the precision increments professionals rely on for fine-tolerance work in manufacturing, maintenance, and aerospace applications.

Key Features:

• Manufactured to NAS 907A aerospace-grade specifications

• Premium HSS construction for superior strength and performance

• 118° standard point ensures accurate starts and clean holes

• Black oxide finish improves wear resistance, lubricity, and heat control

• Precision-ground flutes for smooth chip evacuation and accuracy

For aerospace-grade accuracy, durability, and American-made quality, the Norseman Drill & Tool Wire Gauge Sizes Type 340-A Twist Drill Bit with a black oxide finish delivers dependable performance in every drilling task.