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1NPE4 NAS-Spec Non-Coolant-Through High-Speed Steel Jobber-Length Drill Bits for Aerospace

$4.07

Bulk orders will be discounted, please contact us.

These drill bits meet National Aerospace Specification (NAS) 907 Type B. They have a bright finish that is not affected when their cutting edges are resharpened.

Product Number: 1NPE4

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  • Description
Mfr Model C13151
Measurement System Wire
Drill Bit Size #29
Decimal Equivalent 0.136
Maximum Drilling Depth 1/2 in
Overall Length 6 in
Shank Type Machining Straight
Finish Machining Bright (Uncoated)
Material Machining High Speed Steel
Primary Material Application Aluminum; Brass; Bronze; Copper; Steel
UNSPSC 27112801
Country of Origin USA (subject to change)
Cutting Direction Right Hand
Flute Length 1-3/4 in
Flute Type Spiral
Standards NAS 907 Type B
Series 3957-6
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
Shank Dia 1/8 in
Primary Material Application ISO Code N; P
Material Grade Machining High Performance
Drill Length Class Jobber Length
Drill Point Length 0.0282 in
Shank Length 4-1/4 in
Coolant Fed Non-Coolant Through
Drill Diameter Tolerance +0.0000 in /-0.0007 in
Secondary Material Application Cast Iron; Stainless Steel
Secondary Material Application ISO Code K; M

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