Attributes

Key Value
Aircraft DrillNo
Coolant FedNon-Coolant Through
Cutting DirectionLeft
Decimal Equivalent0.4375in
Depth:Dia. Ratio4xD
Drill Bit GroupingIndividual
Drill Bit Point Angle118 Degrees
Drill Bit Point TypeRadial Point
Drill Bit Size7/16in
Drill Diameter Tolerance+0.0000 in /-0.0010 in
Drill Length ClassJobber Length
Drill Point Length0.1314"
Finish - MachiningBright (Uncoated)
Flute Length4-1/16"
Flute TypeSpiral
Helix Angle21 to 34 Degrees
ItemJobber Drill
List Number1898L
Material - MachiningHigh Speed Steel
Maximum Drilling Depth1 3/4 in
Measurement SystemFractional Inch
Number of Coolant Holes0
Number of Flutes2
Overall Length5-1/2"
Primary Material Applic.Aluminum, Brass, Bronze.
Primary Material Applic.K, N, P
Series1898L
Shank Dia.7/16"
Shank Length1 7/16 in
Shank Type - MachiningStraight
Sheeter DrillNo
Spiral DirectionLeft Hand
StandardsASME B94.11M
Web ThinningThinned
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