Attributes

Key Value
Coolant FedNon-Coolant Through
Cutting DirectionLeft Hand
Decimal Equivalent0.3125
Depth:Dia. Ratio4xD
Drill Bit GroupingIndividual
Drill Bit Point Angle118 Degrees
Drill Bit Point TypeConventional Point
Drill Bit Size5/16 in
Drill Diameter Tolerance+0.0000 in /-0.0010 in
Drill Length ClassJobber Length
Drill Point Length0.0939 in
Finish - MachiningBright (Uncoated)
Flute Length3 3/16 in
Flute TypeSpiral
Helix Angle21 Degrees to 34 Degre.
ItemJobber Length Drill Bit
Material - MachiningHigh Speed Steel
Maximum Drilling Depth1 1/4 in
Measurement SystemFractional Inch
Number of Flutes2
Overall Length4 1/2 in
Primary Material Applic.Aluminum, Brass, Bronze.
Primary Material Applic.K, N, P
Series1898L
Shank Dia.5/16 in
Shank Length1 5/16 in
Shank Type - MachiningStraight
Spiral DirectionLeft Hand
StandardsASME
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