This heavy-duty screw machine drill bit is made of high speed steel and has a 23/64 inch diameter, 1 5/16 inch long shank. It is for use with cast iron, steel, tool and die steel. This 159 series screw machine length drill bit has a black oxide finish, and has letter measurements. It is non-coolant through with a 3⅛ inch length. Plus it has two 1 13/16 inch spiral flutes, a straight shank, and a 135 Degrees split point.
Technical Specs
ItemScrew-Machine Length Drill Bit
Decimal Equivalent0.368
Material - MachiningHigh Speed Steel
Drill Bit Point Angle135 Degrees
Flute TypeSpiral
Flute Length1 13/16 in
Helix Angle28 Degrees
Spiral DirectionRight Hand
Shank Dia.23/64 in
Overall Length3 1/8 in
Drill Length ClassScrew Machine Length
Coolant FedNon-Coolant Through
Series159
Drill Diameter Tolerance+0.0000 in/-0.0010 in
Primary Material ApplicationCast Iron, Steel, Tool and Die Steel