1/4 Inch Cobalt Aircraft Extension Drill Bit Pack Of 12, 12 Inch Length, 135 Degree Split Point For Tough Metals Like Stainless Steel Inconel Titanium, Round Shank, Gold Oxide Finish, Beast Mode Heavy Duty Drill Bit Kit GLBCO Series

1/4in cobalt aircraft extension drill bit pack of 12
✔️ 12in length, 1/4in diameter, 135° split point, cobalt

This cobalt aircraft extension drill bit set is designed for drilling tough metals like stainless steel, Inconel, and titanium, with extended reach for hard-to-access work. Pack of 12 ensures you have a ready-to-use supply for demanding jobs. It features a 135° split point for self-centering and round shanks for wide tool-holding compatibility.

✅ 1/4 in diameter cobalt steel drill bits with 12 in overall length
✅ 135° split point for self-centering and reduced walking
✅ Gold oxide finish identifies cobalt tools and supports performance
✅ Round shank fits a wide range of tool holding systems
✅ National Aerospace Standard 907 compliant

💡 What is a cobalt aircraft extension drill bit used for in precision metalworking? This handy tool is designed for deep-hole work in hard metals where reach matters. - For stainless steel and nickel alloys like Inconel - 135° split point ensures accurate starts and less wandering - Cobalt content boosts wear resistance and tool life - 12 inch reach helps access tight aerospace and automotive work

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