This general purpose jobber length drill bit is made of high speed steel and has a 0.4803 inch diameter, 1.9685 inch long shank. It is for use with aluminum, cast iron, steel, and meets ASME standards, DIN 338. This 1898 series jobber length drill bit has a bright (uncoated) finish, and has metric measurements. It is non-coolant through with a 5.9449 inch length. Plus it has two 101mm spiral flutes, a straight shank, and 118 Degrees conventional point.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.4803 in
Material - MachiningHigh Speed Steel
Drill Bit Point Angle118 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length3.9764 in
Helix Angle21 Degrees /34 Degrees
Spiral DirectionRight Hand
Shank Dia.0.4803 in
Overall Length5.945 in
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsASME B94.11M, DIN 338
Drill Diameter Tolerance+0.0000 in/-0.0010 in
Web ConstructionTapered
Material Grade - MachiningGeneral Purpose
Primary Material Application ISO CodeK, N, P
Drill Bit Size12.2 mm
Measurement SystemMetric
Finish - MachiningBright (Uncoated)
Drill Bit Point TypeRadial Point
Number of Coolant Holes0
Number of Flutes2
Maximum Drilling Depth0.3602 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length1.9685 in
Depth:Dia. Ratio4xD
Drill Point Length0.1443 in
Series1898
Aircraft DrillNo
Sheeter DrillNo
Web ThinningWeb-Thinned
Primary Material ApplicationAluminum, Cast Iron, Steel
List Number1898
Country of OriginUnited States
(subject to change)