This heavy-duty jobber drill bit is made of high speed steel and has a ¼ inch diameter, 1¼ inch long shank. It is designed for use with hard metal, stainless steel. This 400N series jobber length drill bit has a black and gold finish, and has fractional measurements. It has a four-inch length. Plus it has two 2¾ inch spiral flutes, a straight shank, and a 135 Degrees split point.
Technical Specs
ItemJobber Drill
Decimal Equivalent0.2500 in
Material - MachiningHigh Speed Steel
Drill Bit Point Angle135 Degrees
Flute TypeSpiral
Flute Length2 3/4 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length1.25 in
Depth:Dia. Ratio5xD
Drill Bit GroupingIndividual
Aircraft DrillNo
Material Grade - MachiningHeavy Duty
List Number400N
Drill Bit Size1/4 in
Measurement SystemFractional Inch
Finish - MachiningBlack, Gold
Drill Bit Point TypeSplit Point
Number of Flutes2
Maximum Drilling Depth5xD
Spiral DirectionRight Hand
Shank Dia.1/4 in
Overall Length4.000 in
Drill Length ClassJobber Length
Series400N
Sheeter DrillYes
Primary Material ApplicationHard Metal, Stainless Steel