This heavy-duty screw machine drill bit is made of high speed steel and has a 9/64 inch diameter, 1 1/16 inch long shank. It is designed for use with cast iron and steel. This 159 series screw machine length drill bit has a black oxide finish, and has wire measurements. It has a 2 1/16 inch length. Plus it has two 10 inch spiral flutes, a straight shank, and a 135 Degrees split point.
Technical Specs
ItemScrew-Machine Length Drill Bit
Decimal Equivalent0.144
Material - MachiningHigh Speed Steel
Drill Bit Point Angle135 Degrees
Flute TypeSpiral
Flute Length10 in
Helix Angle28 Degrees
Spiral DirectionRight Hand
Shank Dia.9/64 in
Overall Length2 1/16 in
Drill Length ClassScrew Machine Length
Drill Bit GroupingIndividual
StandardsNot Rated
Material Grade - MachiningHeavy Duty
Primary Material Application ISO CodeK, P
Drill Bit Size#27
Measurement SystemWire
Finish - MachiningBlack Oxide
Drill Bit Point TypeSplit Point
Number of Flutes2
Maximum Drilling Depth1 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length1 1/16 in
Depth:Dia. Ratio4xD
Drill Point Length0.0298 in
Series159
Drill Diameter Tolerance+0.0000 in/-0.0007 in
Primary Material ApplicationCast Iron, Steel
List Number159
Country of OriginUnited States
(subject to change)