HSS-Cobalt Round Shank Spiral Flute 135 Degree Point Aircraft Extension Drill Bit

HSS-Cobalt Round Shank Spiral Flute 135 Degree Point Aircraft Extension Drill Bit. Cobalt High Speed Steel: M35 material with 5% cobalt for cutting hard metals like stainless steel and nickel alloys. 135 Degree Split Point: Self-centering design for precise drilling in metal, steel, iron, copper, and aluminum. Gold Oxide Finish: Thin oxide surface treatment that reduces friction and improves chip evacuation. Extended Length Options: Available in 6, 12, or 18 inch lengths for deep hole drilling applications. Customization Support: OEM and ODM services available including logo marking and custom packaging. Strict Quality Control: Comprehensive inspections including hardness, diameter tolerance, and runout testing. Aerospace Standard: Manufactured to meet national aerospace standard 907 for high performance. Versatile Shank Design: Round shank compatible with a wide variety of tool holding systems.