This high-performance jobber length drill bit is made of cobalt and has a 21/64 inch diameter, 1 5/16 inch long shank. It is for use with aluminum, cast iron, hardened steel, high-temperature alloy, non-ferrous material, steel, and meets ASME standards. This jobber length drill bit has a straw/bronze finish, and has fractional inch measurements. It is non-coolant through with a 4⅝ inch length. Plus it has two 3 5/16 inch spiral flutes, a straight shank, and a 135 Degrees split point.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.3281
Material - MachiningCobalt
Drill Bit Point Angle135 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length3 5/16 in
Helix Angle21 Degrees /34 Degrees
Spiral DirectionRight Hand
Shank Dia.21/64 in
Overall Length4 5/8 in
Drill Length ClassJobber Length
StandardsASME
Drill Diameter Tolerance+0.0000 in/-0.0010 in
Web ThinningThinned
Primary Material ApplicationAluminum, Cast Iron, Hardened Steel, High Temperature Alloy, Non-Ferrous Material, Steel
List NumberWestward
Drill Bit Size21/64 in
Measurement SystemFractional Inch
Finish - MachiningStraw/Bronze
Drill Bit Point TypeSplit Point
Number of Coolant Holes0
Number of Flutes2
Maximum Drilling Depth3 5/16 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length1 5/16 in
Depth:Dia. Ratio4xD
Drill Bit GroupingIndividual
Aircraft DrillNo
Sheeter DrillNo
Material Grade - MachiningHigh Performance
Primary Material Application ISO CodeH, K, N, P, S