This non-coolant through jobber drill bit features two spiral flutes and a 135 Degrees point angle. It has a flute length of 2.716 inches, an overall length of 4 19/64 inches, and a diameter of seven millimetres. It is made of high-speed steel and is made for use with carbon steel and cast iron.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.2756
Material - MachiningHigh Speed Steel
Drill Bit Point Angle135 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length69.00 mm
Helix Angle28 Degrees
Spiral DirectionRight Hand
Shank Dia.7 mm
Overall Length109.00 mm
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsDIN 338
Drill Diameter Tolerance+0.0000 in/-0.0010 in
Web ThinningThinned
Primary Material ApplicationCast Iron, Steel
List Number1878
Drill Bit Size7.00 mm
Measurement SystemMetric
Finish - MachiningBlack and Gold
Drill Bit Point TypeSplit Point
Number of Coolant Holes0
Number of Flutes2
Maximum Drilling Depth1 3/32 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight with Three Flats
Shank Length40.00 mm
Depth:Dia. Ratio4xD
Drill Point Length0.0571 mm
Series1878
Aircraft DrillNo
Sheeter DrillNo
Material Grade - MachiningHigh Performance
Primary Material Application ISO CodeK, P
Country of OriginUnited States
(subject to change)