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439P78 Cobalt Screw-Machine Length Drill Bits

$13.33

Bulk orders will be discounted, please contact us.

The TiN coating on these drill bits protects them from wear and heat when drilling steel, stainless steel, and aluminum. Parabolic-flute drill bits have wide, deep flutes that improve chip flow and heat dissipation, which means feed rates do not need to be reduced as the drill moves deeper into the workpiece.

Product Number: 439P78

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  • Description
Mfr Model C14364
Measurement System Wire
Drill Bit Size #3
Decimal Equivalent 0.2130
Overall Length 2-3/8 in
Shank Diameter 7/32 in
Shank Type Machining Straight
Finish Machining TiN
Material Machining Cobalt
Primary Material Application Steel
UNSPSC 27112801
Country of Origin USA (subject to change)
Cutting Direction Right Hand
Flute Length 1-1/4 in
Flute Type Parabolic
Standards ASME B94.11M-1993
Drill Bit Point Angle 135 °
Drill Bit Point Type Split Point
Number of Flutes 2
Spiral Direction Right Hand
Helix Angle 40 °
Depth Dia Ratio 10xD
Primary Material Application ISO Code P
Material Grade Machining M42
Drill Length Class Screw Machine Length
Sheeter Drill No
Drill Point Length 0.0441 in
Shank Length 1-1/8 in
Coolant Fed Non-Coolant Through
Drill Diameter Tolerance +0.0000 in /-0.0007 in
Secondary Material Application Non Ferrous Material
Secondary Material Application ISO Code M

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