This jobber drill bit has a flute length of 3.1875 inches, an overall length of 4.5 inches, and a diameter of 5/16 inches. It is made of high-speed steel and has a bright finish.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.3125
Material - MachiningHigh Speed Steel
Drill Bit Point Angle118 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length3 3/16 in
Helix Angle40 Degrees
Spiral DirectionRight Hand
Shank Dia.5/16 in
Overall Length4 1/2 in
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsANSI
Drill Diameter Tolerance+0.0000 in/-0.0010 in
Web ThinningThinned
Primary Material ApplicationAluminum, Composite, Copper, Slate, Steel, Wood
List Number150B
Drill Bit Size5/16 in
Measurement SystemFractional Inch
Finish - MachiningBright (Uncoated)
Drill Bit Point TypeConventional Point
Number of Coolant Holes0
Number of Flutes2
Maximum Drilling Depth1 1/4 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length1 5/16 in
Depth:Dia. Ratio4xD
Drill Point Length0.0939 in
Series150B
Aircraft DrillNo
Sheeter DrillNo
Material Grade - MachiningGeneral Purpose
Primary Material Application ISO CodeN, O, P
Country of OriginUnited States
(subject to change)