High-speed steel 12″ extra-length aircraft extension drills with a 135° split point and black oxide finish are designed for precise starts and smoother drilling. Their heavy-duty construction provides added strength and extended reach in deep or hard-hole applications.
Features:
- Black oxide finish improves chip flow and increases abrasion resistance for extra reach in hard to reach places
- Made from premium grade HSS to improve tool life
- Self centering 135° split-point for reduced thrust requirements and minimized walking
Best Material Application:
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