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407G55 High-Speed Steel Extended-Length Drill Bits

$10.76

Bulk orders will be discounted, please contact us.

These extended-length drill bits meet National Aerospace Standards (NAS) 907 Type B for drill bits used in aircraft repair and production. The bits have a bright finish that is not affected when their cutting edges are resharpened. Spiral-flute drill bits evacuate chips as the bits drill into a workpiece. These bits do not have coolant holes, so a separate hose is required to bring coolant to the bits' tip if it is needed.

Product Number: 407G55

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  • Description
Mfr Model C13239
Measurement System Wire
Drill Bit Size #28
Decimal Equivalent 0.1405
Maximum Drilling Depth 1-3/4 in
Overall Length 12 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 Not Rated
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 1/8 in
Primary Material Application ISO Code N; P
Material Grade Machining High Performance
Drill Length Class Extra Long
Sheeter Drill No
Drill Point Length 0.0291 in
Shank Length 11/4 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
Web Construction Tapered

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