This heavy-duty screw machine drill bit is made of high speed steel and has a 3/64 inch diameter, ⅞ inch long shank. It is 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 135 Degrees drill bit point, with a 1⅜ inch length. Plus it has two ½ inch spiral flutes, a straight shank, and a 135 Degrees split point.
Technical Specs
ItemScrew-Machine Length Drill Bit
Decimal Equivalent0.0465
Material - MachiningHigh Speed Steel
Drill Bit Point Angle135 Degrees
Flute TypeSpiral
Flute Length1/2 in
Helix Angle28 Degrees
Spiral DirectionRight Hand
Shank Dia.3/64 in
Overall Length1 3/8 in
Drill Length ClassScrew Machine Length
Drill Bit GroupingIndividual
StandardsNot Rated
Material Grade - MachiningHeavy Duty
Primary Material Application ISO CodeK, P
Drill Bit Size#56
Measurement SystemWire
Finish - MachiningBlack Oxide
Drill Bit Point TypeSplit Point
Number of Flutes2
Maximum Drilling Depth1/2 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length7/8 in
Depth:Dia. Ratio4xD
Drill Point Length0.0096 in
Series159
Drill Diameter Tolerance+0.0000 in/-0.0005 in
Primary Material ApplicationCast Iron, Steel
List Number159
Country of OriginUnited States
(subject to change)