This heavy-duty jobber length drill bit is made of high speed steel and has a 0.3906 inch diameter, 1⅜ inch long shank. It is for use with alloy steel, carbon steel, cast iron, and meets ASME standards, DIN 338. This 1602 series jobber length drill bit has a black oxide finish, and has fractional inch measurements. It is non-coolant through with a 5⅛ inch length. Plus it has two 3¾ inch spiral flutes, a straight shank, and a 135 Degrees split point.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.3906 in
Material - MachiningHigh Speed Steel
Drill Bit Point Angle135 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length3.75 in
Helix Angle21 Degrees /34 Degrees
Spiral DirectionRight Hand
Shank Dia.0.3906 in
Overall Length5.125 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 - MachiningHeavy Duty
Primary Material Application ISO CodeK, P
Drill Bit Size25/64 in
Measurement SystemFractional Inch
Finish - MachiningSteam Oxide
Drill Bit Point TypeSplit Point
Number of Coolant Holes0
Number of Flutes2
Maximum Drilling Depth1 9/16 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length1.375 in
Depth:Dia. Ratio4xD
Drill Point Length0.0809 in
Series1602
Aircraft DrillNo
Sheeter DrillNo
Web ThinningWeb-Thinned
Primary Material ApplicationCarbon Steel, Alloy Steel, Cast Iron,