High speed steel, left hand Jobber length general purpose drill bit. 118 degree point, bright finish. Material applications: tool steel, alloyed steel, aluminum, carbon steels, and cast iron.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.2188
Material - MachiningHigh Speed Steel
Drill Bit Point Angle118 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length2 1/2 in
Helix Angle21 Degrees /34 Degrees
Spiral DirectionLeft Hand
Shank Dia.7/32 in
Overall Length3 3/4 in
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsASME B94.11M
Drill Diameter Tolerance+0.0000 in/-0.0007 in
Web ThinningThinned
Primary Material Application ISO CodeK, N, P
Drill Bit Size7/32 in
Measurement SystemFractional Inch
Finish - MachiningBright (Uncoated)
Drill Bit Point TypeConventional Point
Number of Coolant Holes0
Number of Flutes2
Maximum Drilling Depth7/8 in
Cutting DirectionLeft Hand
Shank Type - MachiningStraight
Shank Length1 1/4 in
Depth:Dia. Ratio4xD
Drill Point Length0.0657 in
Series1898L
Aircraft DrillNo
Sheeter DrillNo
Primary Material ApplicationAluminum, Brass, Bronze, Cast Iron, Copper, Steel
List Number1898
Country of OriginUnited States
(subject to change)