Heavy-duty extra length drills. Features a black oxide finish, 118 degree notch point, high speed steel construction. Size 1/4 inch, length 8 inches, flute length 5-1/2 inches.
Technical Specs
ItemDrill Bit
Decimal Equivalent0.2500 in
Material - MachiningHigh Speed Steel
Drill Bit Point Angle118 Degrees
Flute TypeSpiral
Flute Length5 1/2 in
Helix Angle28 Degrees
Spiral DirectionRight Hand
Shank Dia.1/4 in
Overall Length8 in
Drill Length ClassExtended Length
Coolant FedNon-Coolant Through
StandardsNot Rated
Material Grade - MachiningGeneral Purpose
Primary Material Application ISO CodeK, P
Drill Bit Size1/4 in
Measurement SystemFractional Inch, Letter
Finish - MachiningSteam Oxide
Drill Bit Point TypeNotched Point
Number of Flutes2
Maximum Drilling Depth5 1/2 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length2 1/2 in
Depth:Dia. Ratio4xD
Drill Point Length0.0751 in
Drill Bit GroupingIndividual
Drill Diameter Tolerance+0.0000 in/-0.0007 in
Primary Material ApplicationCast Iron, Steel
List Number120X
Country of OriginUnited States
(subject to change)