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439D66 Cobalt Extended-Length Drill Bits

$17.43

Bulk orders will be discounted, please contact us.

These drill bits have a straw/bronze finish that improves their wear resistance. The bits' spiral flutes evacuate chips as the bits drill into a workpiece.

Product Number: 439D66

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  • Description
Mfr Model C08183
Measurement System Fractional Inch
Drill Bit Size 13/64 in
Decimal Equivalent 0.2031
Maximum Drilling Depth 2-7/16 in
Overall Length 12 in
Shank Type Machining Straight
Finish Machining Straw/Bronze
Material Machining Cobalt
Primary Material Application Aluminum; Brass; Bronze; Copper; Stainless Steel; Steel
UNSPSC 27112801
Country of Origin USA (subject to change)
Cutting Direction Right Hand
Flute Length 2-7/16 in
Flute Type Spiral
Standards NAS 907 Type J
Drill Bit Point Angle 135 °
Drill Bit Point Type Split Point
Number of Flutes 2
Spiral Direction Right Hand
Helix Angle 28°
Depth Dia Ratio 10xD
Shank Dia 13/64 in
Primary Material Application ISO Code K; N
Material Grade Machining M42
Drill Length Class Extra Long
Sheeter Drill No
Drill Point Length 0.0421 in
Shank Length 9-9/16 in
Coolant Fed Non-Coolant Through
Drill Diameter Tolerance +0.0000 in /-0.0007 in
Secondary Material Application Cast Iron; Nickel; Stainless Steel; Titanium
Secondary Material Application ISO Code K; M; S

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