Norseman Drill & Tool NAS 907J Type 150 Wire Gauge Sizes M42 Cobalt Twist Drill Bit

Norseman Drill & Tool NAS 907J Type 150 Wire Gauge Sizes M42 Cobalt Twist Drill Bit

Precision for Tight Tolerances and Tough Materials

The Norseman Drill & Tool NAS 907J Type 150 Wire Gauge Sizes M42 Cobalt Twist Drill Bit is engineered for professionals who demand extreme accuracy when drilling small-diameter holes in hard, heat-resistant materials. Manufactured in the USA to stringent NAS 907J aerospace standards, this premium drill bit is produced from M42 high-speed steel with 8% cobalt, delivering superior red hardness, wear resistance, and tool life in high-temperature applications.

Wire gauge sizes are critical when fractional or letter drills are too coarse. These fine-diameter sizes allow machinists, aerospace technicians, and medical manufacturers to achieve tight tolerances and exact hole control, making the Type 150 an essential tool for precision-driven industries. It performs exceptionally well in stainless steel, titanium alloys, tool steels, and other high-strength metals where conventional drill bits fail prematurely.

Designed for Accuracy, Stability, and Tool Life

Each Type 150 wire gauge drill bit features a 135° split point, allowing for immediate self-centering and walk-free starts. This geometry eliminates the need for pilot holes, reducing setup time while improving positional accuracy—especially important when drilling small diameters. Precision-ground flutes promote smooth chip evacuation and reduce heat buildup, helping maintain cutting edges and extend service life during continuous or high-RPM drilling.

When paired with rigid setups and positive-feed drilling equipment, the cobalt construction ensures consistent performance even under demanding conditions.

Key Features and Benefits

• M42 high-speed steel with 8% cobalt for extreme heat resistance

• Wire gauge sizes for ultra-precise, small-diameter drilling

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

• Meets NAS 907J aerospace performance requirements

• Ideal for stainless steel, titanium, and hard alloys

• Precision-ground flutes for efficient chip evacuation

• Made in the USA for consistent, professional-grade quality

Built for Critical Applications

For aerospace components, electrical assemblies, medical devices, and precision machining tasks, accuracy isn’t optional—it’s required. The Norseman NAS 907J Type 150 Wire Gauge Size Cobalt Drill Bit delivers the control, durability, and reliability professionals trust when tolerances are tight and materials are unforgiving.

Drill smaller. Drill stronger. Drill with Norseman.