This screw machine drill bit is made of high speed steel and has a 29/64 inch diameter, 1 7/16 inch long shank. It is for use with aluminum, brass, bronze, composite, copper, slate, steel, wood, and meets the standards for ISO. This 157L series screw machine length drill bit has a bright (uncoated) finish, and has fractional inch measurements. It has a 3 9/16 inch length. Plus it has two 2⅛ inch spiral flutes, a straight shank, and 118 Degrees conventional point.
Technical Specs
ItemScrew-Machine Length Drill Bit
Decimal Equivalent0.4531
Material - MachiningHigh Speed Steel
Drill Bit Point Angle118 Degrees
Flute TypeSpiral
Flute Length2 1/8 in
Helix Angle28 Degrees
Spiral DirectionLeft Hand
Shank Dia.29/64 in
Overall Length3 9/16 in
Drill Length ClassScrew Machine Length
Drill Bit GroupingIndividual
StandardsISO
Primary Material ApplicationAluminum, Brass, Bronze, Composite, Copper, Slate, Steel, Wood
List Number157L
Drill Bit Size29/64 in
Measurement SystemFractional Inch
Finish - MachiningBright (Uncoated)
Drill Bit Point TypeConventional Point
Number of Flutes2
Maximum Drilling Depth2 1/8 in
Cutting DirectionLeft Hand
Shank Type - MachiningStraight
Shank Length1 7/16 in
Depth:Dia. Ratio4xD
Drill Point Length0.1361 in
Series157L
Drill Diameter Tolerance+0.0000 in/-0.0010 in
Primary Material Application ISO CodeN, O, P
Country of OriginUnited States
(subject to change)