Norseman Drill & Tool NAS 907J Type 150-N Letter Sizes M42 Cobalt Twist Drill Bit

Norseman Drill & Tool NAS 907J Type 150-N Letter Sizes M42 Cobalt Twist Drill Bit

TiN-Coated Precision for Demanding Applications

The Norseman Drill & Tool NAS 907J Type 150-N Letter Size M42 Cobalt Twist Drill Bit is engineered for professionals who require uncompromising accuracy, extended tool life, and consistent performance in extreme drilling conditions. Manufactured in the USA to stringent NAS 907J aerospace standards, this drill bit is produced from M42 high-speed steel with 8% cobalt, delivering exceptional red hardness, edge stability, and resistance to heat-related wear.

TiN Coating for Extended Tool Life

What distinguishes the Type 150-N from standard cobalt drills is its Titanium Nitride (TiN) coating. This advanced surface treatment reduces friction between the cutting edge and workpiece, allowing for cooler cutting temperatures, smoother chip flow, and significantly longer tool life—often up to five times longer than uncoated drill bits. The result is higher productivity, fewer tool changes, and improved cost efficiency in high-volume or repetitive drilling operations.

Letter Sizes for High-Tolerance Work

The letter size configuration provides precise, non-fractional hole diameters that are essential in aerospace, automotive, defense, and precision manufacturing applications. These exact sizes are critical when tight tolerances must be maintained for fasteners, pins, or alignment features.

A 135° split point geometry ensures immediate self-centering, fast penetration, and walk-free starts—eliminating the need for pilot holes. Precision-ground flutes promote efficient chip evacuation, reducing heat buildup and extending cutting edge life when used with rigid setups and positive-feed drilling equipment.

Key Features & Benefits

• M42 cobalt high-speed steel with 8% cobalt content

• Titanium Nitride (TiN) coating for reduced friction and longer life

• 135° split point for accurate, walk-free starts

• Letter sizes for precise, non-standard hole diameters

• Ideal for stainless steel, titanium, tool steels, and hard alloys

• Meets NAS 907J aerospace performance specifications

• Made in the USA for consistent, professional quality

Built for Precision Professionals

When performance, durability, and dimensional accuracy are critical, the Norseman NAS 907J Type 150-N Letter Size M42 Cobalt Drill Bit delivers reliable results in the toughest materials. It’s the trusted choice for professionals who refuse to compromise on precision.

Drill cleaner. Drill longer. Drill with Norseman.