High speed steel, 118 degree. For tool steel, alloyed steel, aluminum, carbon steels and cast iron. Size 7/16 in., decimal equivalent 0.4375, flute length 4-1/16 in, and length 5-1/2 in.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.4375
Material - MachiningHigh Speed Steel
Drill Bit Point Angle118 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length4 1/16 in
Helix Angle21 Degrees /34 Degrees
Spiral DirectionRight Hand
Shank Dia.7/16 in
Overall Length5 1/2 in
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsNAS 907 Type A
Drill Diameter Tolerance+0.0000 in/-0.0010 in
Web ThinningThinned
Primary Material ApplicationAluminum, Brass, Bronze, Copper, Steel