This M42 jobber length drill bit is made of cobalt and has a 12 mm diameter, 50 mm long shank. It is for use with steel, titanium, tool and die steel, and meets the standards for NAS 907 Type J. This 550 series jobber length drill bit has a straw/bronze finish, and has metric measurements. It is non-coolant through with a 151mm length. Plus it has two 101mm spiral flutes, a straight shank, and a 135 Degrees split point.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.4724
Material - MachiningCobalt
Drill Bit Point Angle135 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length101.00 mm
Helix Angle28 Degrees
Spiral DirectionRight Hand
Shank Dia.12 mm
Overall Length151.00 mm
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsNAS 907 Type J
Drill Diameter Tolerance+0.0000 in/-0.0010 in
Web ThinningThinned
Primary Material ApplicationStainless Steel, Steel, Titanium, Tool and Die Steel