This M42 jobber length drill bit is made of cobalt and has a ⅛ inch diameter, 1⅛ inch long shank. It is for use with steel, tool and die steel, and meets the standards for NAS 907 Type J. This 55TN series jobber length drill bit has a TiN finish, and has wire measurements. It is non-coolant through with a 2⅞ inch length. Plus it has two 1¾ inch spiral flutes, a straight shank, and a 135 Degrees split point.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.1360 in
Material - MachiningCobalt
Drill Bit Point Angle135 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length1 3/4 in
Helix Angle28 Degrees
Spiral DirectionRight Hand
Shank Dia.1/8 in
Overall Length2 7/8 in
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsNAS 907 Type J
Drill Diameter Tolerance+0.0000 in/-0.0007 in
Web ThinningThinned
Primary Material ApplicationStainless Steel, Steel, Tool and Die Steel