This high-performance extra long drill bit is made of high speed steel and has a 7/16 inch diameter, 7 15/16 inch long shank. This extra long drill bit has a black oxide finish, and has fractional inch measurements. It is non-coolant through with a 12 inch length. Plus it has two 4 1/16 inch spiral flutes, a straight shank, and a 135 Degrees split point drill point.
Technical Specs
ItemExtra Long Drill Bit
Decimal Equivalent0.4375
Material - MachiningHigh Speed Steel
Drill Bit Point Angle135 Degrees
Flute TypeSpiral
Flute Length4 1/16 in
Helix Angle28 Degrees
Spiral DirectionRight Hand
Shank Dia.7/16 in
Overall Length12 in
Drill Length ClassExtra Long
Coolant FedNon-Coolant Through
Material Grade - MachiningHigh Performance
Drill Bit Size7/16 in
Measurement SystemFractional Inch
Finish - MachiningBlack Oxide
Drill Bit Point TypeSplit Point
Number of Flutes2
Maximum Drilling Depth1 3/4 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length7 15/16 in
Depth:Dia. Ratio4xD
Drill Point Length0.0906 in
Drill Bit GroupingIndividual
List Number912CAT
Country of OriginUnited States
(subject to change)