Jobber Length Drill Bit, Drill Bit Size U, Drill Bit Point Angle 135 Degrees , Cobalt, TiAlN, Decimal Equivalent 0.3680, Letter, Drill Bit Point Type Split Point, Non-Coolant Through, Number of Coolant Holes 0 These drill bits meet National Aerospace Specification (NAS) 907 Type J for drill bits used in aircraft repair and production. They have a TiAlN coating that withstands high temperatures and protects the bits from wear during high-speed, dry machining applications with difficult-to-machine ferrous metals. They also have spiral flutes that evacuate chips as the bits drill into a workpiece.Cobalt jobber-length drill bits tolerate higher drilling speeds and are harder and more wear-resistant than high-speed steel drill bits. They provide some shock absorption and can be used in handheld.
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