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435H17 Cobalt Jobber-Length Drill Bits

$17.48

Bulk orders will be discounted, please contact us.

These drill bits meet National Aerospace Specification (NAS) 907 Type J for drill bits used in aircraft repair and production. They have a have a straw/bronze finish that improves their wear resistance, and they have spiral flutes that evacuate chips as the bits drill into a workpiece.

Product Number: 435H17

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  • Description
Mfr Model C70028
Measurement System Fractional Inch
Drill Bit Size 29/64 in
Decimal Equivalent 0.4531
Maximum Drilling Depth 3-1/8 in
Overall Length 5-5/8 in
Shank Diameter 7/16 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 4-3/16 in
Flute Type Spiral
Standards NAS 907 Type J
Series 2213
Drill Bit Point Angle 135 °
Drill Bit Point Type Split Point
Number of Flutes 2
Spiral Direction Right Hand
Helix Angle 21° to 34°
Depth Dia Ratio 4xD
Primary Material Application ISO Code M; N; P
Material Grade Machining M42
Drill Length Class Jobber Length
Sheeter Drill No
Drill Point Length 0.0938 in
Shank Length 1-7/16 in
Coolant Fed Non-Coolant Through
Drill Diameter Tolerance +0.0000 in/-0.0010 in
Secondary Material Application Cast Iron; Hi-Temp Alloy
Secondary Material Application ISO Code K; S

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