This threaded shank drill bit is made of cobalt and has a ¼"-28 shank. It is designed for use with steel, and meets the standards for NAS 965 Type D. This threaded shank drill bit has a black oxide finish, and has wire measurements. It has a 135 Degrees drill bit point, with a 1¼ inch length. Plus it has two 9/16 inch spiral flutes, threaded, right hand cutting direction, and a 135 Degrees split point.
Technical Specs
ItemThreaded Shank Drill Bit
Shank Thread Size1/4"-28
Measurement SystemWire
Drill Bit Point Angle135 Degrees
Drill Bit Point TypeSplit Point
Number of Flutes2
Maximum Drilling Depth9/16 in
Spiral DirectionRight Hand
Depth:Dia. Ratio4xD
Shank Type - MachiningThreaded
StandardsNAS 965 Type D
Primary Material ApplicationSteel
Material - MachiningCobalt
Finish - MachiningBlack Oxide
Drill Bit Size#21
Decimal Equivalent0.159
Flute TypeSpiral
Flute Length9/16 in
Cutting DirectionRight Hand
Overall Length1 1/4 in
Drill Bit GroupingIndividual
Aircraft DrillYes
Web ConstructionSplit
Primary Material Application ISO CodeP, S
Country of OriginUnited States
(subject to change)