This High Speed Steel Aircraft Extension Drill is designed for drilling 6 in. extra reach applications in carbon, alloy and cast iron steels. The drill features a 135-degree split point designed to prevent work-piece walking, precision grinding to tight tolerances and superior rigidity for hand and machine drilling. A black oxide finish on premium high speed steel enables the drills to run cooler with increased lubricity and longevity.
- Superior rigidity in hand or machine drilling
- Made of industrial-grade cobalt steel designed for tough and work hardened materials like stainless, armor and INCONEL
- Cobalt steel is a refractory material that resists heat and allowing the tool to run cooler and last longer
- 135-degree split point eliminates walking and drills on contact along with requiring less force to push it also drills faster than a conventional pointed drill
- Straw finish adds lubricity and identifies cobalt
- Precision ground to tight tolerances
- Heavy-duty construction for extreme operating conditions






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