This jobber length drill bit is made of high speed steel and has a 3.7 mm diameter, 31 mm long shank. It is for use with aluminum, cast iron, steel, and meets ASME standards, DIN 338. This 1899 series jobber length drill bit has a black oxide finish, and has metric measurements. It is non-coolant through with a 70mm length. Plus it has two 39mm spiral flutes, a straight shank, and 118 Degrees conventional point.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.1457
Material - MachiningHigh Speed Steel
Drill Bit Point Angle118 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length39.00 mm
Helix Angle21 Degrees /34 Degrees
Spiral DirectionRight Hand
Shank Dia.3.7 mm
Overall Length70.00 mm
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsASME B94.11M, DIN 338
Drill Diameter Tolerance+0.0000 in/-0.0007 in
Web ThinningThinned
Primary Material Application ISO CodeK, N, P
Drill Bit Size3.70 mm
Measurement SystemMetric
Finish - MachiningBlack Oxide
Drill Bit Point TypeConventional Point
Number of Coolant Holes0
Number of Flutes2
Maximum Drilling Depth37/64 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length31 mm
Depth:Dia. Ratio4xD
Drill Point Length0.0438 mm
Series1899
Aircraft DrillNo
Sheeter DrillNo
Primary Material ApplicationAluminum, Cast Iron, Steel
List Number1899
Country of OriginUnited States
(subject to change)