This jobber drill bit set includes a metal drill index, is designed for use with alloy/carbon steel, aluminum, cast iron, and meets the standards for ASME. This 1872-TN series jobber length drill bit set has a TiN finish, and has fractional inch measurements. It is non-coolant through. Plus it has two parabolic flutes, a straight shank, and a 135 Degrees split point drill point.
Technical Specs
ItemJobber Drill Bit Set
Measurement SystemFractional Inch
Drill Bit Sizes Included1/16 in, 1/4 in, 1/8 in, 11/32 in, 11/64 in, 13/64 in, 15/64 in, 17/64 in, 19/64 in, 21/64 in, 23/64 in, 3/16 in, 3/32 in, 3/8 in, 5/16 in, 5/32 in, 5/64 in, 7/32 in, 7/64 in, 9/32 in, 9/64 in
Drill Bit Point TypeSplit Point
Number of Flutes2
Spiral DirectionRight Hand
Drill Bit GroupingSet
Shank Type - MachiningStraight
Drill Bit Case TypeMetal Drill Index
StandardsASME B94.11M-1993
Coolant FedNon-Coolant Through
Web ConstructionTapered
Primary Material ApplicationAlloy Steel, Aluminum, Carbon Steel, Cast Iron
Drill Bit Size1/16 in to 3/8 in
Smallest Drill Bit Size1/16 in
Finish - MachiningTiN
Number of Drill Bits21
Drill Bit Point Angle135 Degrees
Flute TypeParabolic
Cutting DirectionRight Hand
Depth:Dia. Ratio8xD
Drill Length ClassJobber Length
Series1872-TN
IncludesMetal Drill Index
Aircraft DrillNo
Drill Diameter Tolerance+0.0000 in/-0.0005 in to +0.0000 in/-0.0007 in to +0.0000 in/-0.0010 in