This non-coolant through jobber drill bit features two spiral flutes and a 118 Degrees point angle. It has a flute length of 2 23/32 inches, an overall length of 4 9/32 inches, and a diameter of 7.25 millimetres. This drill bit is made of high-speed steel.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.2854 in
Material - MachiningHigh Speed Steel
Drill Bit Point Angle118 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length2.7165 in
Helix Angle21 Degrees /34 Degrees
Spiral DirectionRight Hand
Shank Dia.0.2854 in
Overall Length4.291 in
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsASME B94.11M, DIN 338
Drill Diameter Tolerance+0.0000 in/-0.0010 in
Web ThinningThinned
Primary Material ApplicationAluminum, Brass, Bronze, Cast Iron, Copper, Steel
List Number1899
Drill Bit Size7.25 mm
Measurement SystemMetric
Finish - MachiningSteam Oxide
Drill Bit Point TypeRadial Point
Number of Coolant Holes0
Number of Flutes2
Maximum Drilling Depth1 9/64 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length1.5748 in
Depth:Dia. Ratio4xD
Drill Point Length0.0857 mm
Series1899
Aircraft DrillNo
Sheeter DrillNo
Material Grade - MachiningGeneral Purpose
Primary Material Application ISO CodeK, N, P
Country of OriginUnited States
(subject to change)