Jobber length cobalt drill bit. Modified 135 degree split point with high positive notch angle for self centering. High helix for more efficient chip removal. Screw machine flute length for extra tool strength.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.3281
Material - MachiningCobalt
Drill Bit Point Angle135 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length1 11/16 in
Helix Angle35 Degrees /45 Degrees
Spiral DirectionRight Hand
Shank Dia.5/16 in
Overall Length4 5/8 in
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsNot Rated
Drill Diameter Tolerance+0.0000 in/-0.0005 in
Web ThinningThinned
Primary Material ApplicationCast Iron, Nickel, Stainless Steel, Steel, Titanium