Description

Drill Bit Grouping=Drill Bit
Drill Bit Dimension Type=Wire
Drill Bit Size=#21
Decimal Equivalent=0.1590
Drill Bit Point Angle=135 Degrees
Drill Bit Material=Cobalt Steel
Drill Bit Finish=Black Oxide
Shank Size=1/4″-28
Flute Length=1 1/8 in
Application=For aviation
Depth:Dia. Ratio=4xD
Point Angle=135 Degrees
Wire Size=#21
Cutting Direction=Right Hand
Finish=Black Oxide
Material=Cobalt M42
Overall Length=2 1/8 in
Item=Threaded Shank Drill Bit
Flute Type=Spiral
Number of Flutes=2
Standards=NAS 965 Type D
Finish – Machining=Black Oxide
Shank Thread Size=1/4″-28
Aircraft Drill=Yes
Drill Bit Point Type=Split Point
Primary Material Application=Steel
Shank Type – Machining=Threaded
Measurement System=Wire
Spiral Direction=Right Hand
Web Construction=Split
Material – Machining=Cobalt
Primary Material Application ISO Code=P, S
Maximum Drilling Depth=1 1/8 in
Shank Shape=Threaded
Shank Dia.=1/4″-20