Bright finish split point jobber drill is a high speed steel, 118 degree. For tool steel, alloyed steel, aluminum, carbon steels and cast iron. Size 20, decimal equivalent 0.1610, flute length 2-1/8 in., and length 3-1/4 in.
Technical Specs
ItemJobber Length Drill Bit
Decimal Equivalent0.161
Material - MachiningHigh Speed Steel
Drill Bit Point Angle118 Degrees
Coolant FedNon-Coolant Through
Flute TypeSpiral
Flute Length2 1/8 in
Helix Angle21 Degrees /34 Degrees
Spiral DirectionRight Hand
Shank Dia.5/32 in
Overall Length3 1/4 in
Drill Length ClassJobber Length
Drill Bit GroupingIndividual
StandardsNAS 907 Type A
Drill Diameter Tolerance+0.0000 in/-0.0007 in
Web ThinningThinned
Primary Material ApplicationAluminum, Brass, Bronze, Copper, Steel
List Number2228
Drill Bit Size#20
Measurement SystemWire
Finish - MachiningBright (Uncoated)
Drill Bit Point TypeSplit Point
Number of Coolant Holes0
Number of Flutes2
Maximum Drilling Depth41/64 in
Cutting DirectionRight Hand
Shank Type - MachiningStraight
Shank Length1 1/8 in
Depth:Dia. Ratio4xD
Drill Point Length0.0484 in
Series2228
Aircraft DrillYes
Sheeter DrillNo
Material Grade - MachiningGeneral Purpose
Primary Material Application ISO CodeN, P
Country of OriginUnited States
(subject to change)