This M42 jobber length drill bit is made of cobalt and has a 10.8 mm diameter, 48 mm long shank. It is for use with steel, titanium, tool and die steel, and meets the standards for DIN 338, 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 142mm length. Plus it has two 94mm spiral flutes, a straight shank, and a 135 Degrees split point.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.4252
Material - MachiningCobalt
Drill Bit Point Angle135 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length94.00 mm
Helix Angle28 Degrees
Spiral DirectionRight Hand
Shank Dia.10.8 mm
Overall Length142.00 mm
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsDIN 338, NAS 907 Type J
Drill Diameter Tolerance+0.0000 in/-0.0010 in
Web ConstructionTapered
Material Grade - MachiningM42
Primary Material Application ISO CodeM, P, S
Drill Bit Size10.80 mm
Measurement SystemMetric
Finish - MachiningStraw/Bronze
Drill Bit Point TypeSplit Point
Number of Coolant Holes0
Number of Flutes2
Maximum Drilling Depth1 11/16 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length48 mm
Depth:Dia. Ratio4xD
Drill Point Length0.0881 mm
Series550
Aircraft DrillYes
Sheeter DrillNo
Web ThinningWeb-Thinned
Primary Material ApplicationStainless Steel, Steel, Titanium, Tool and Die Steel
List Number550
Country of OriginUnited States
(subject to change)