12-Inch Cobalt Aircraft-Length Twist Drill Bit – 135° Split Point, M35

Tackle the toughest drilling jobs with the 12" Cobalt Aircraft-Length Twist Drill Bit, engineered for precision, durability, and exceptional reach. Crafted from M35 cobalt steel, this bit delivers superior performance when cutting high-tensile materials like stainless steel, titanium, and nickel alloys.

Built to National Aerospace Standard 907, it features a 135° split point tip for self-centering starts and reduced thrust, ensuring clean, accurate holes with less walking. Its gold oxide finish improves wear resistance and helps with quick size identification. With its extended 12-inch length, this drill bit is ideal for deep-hole drilling and hard-to-reach applications.

Key Features:

M35 cobalt steel – Handles hard metals like stainless steel, inconel, and titanium with ease.

135° split point – Self-centering design reduces walking and thrust.

High red hardness – Allows drilling speeds up to 30% faster than standard HSS bits.

Gold oxide finish – Enhances wear resistance and visibility.

Aircraft-length 12-inch design – Perfect for extra reach and deep drilling.

Meets National Aerospace Standard 907 – Precision-engineered for demanding applications.