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406X93 High-Speed Steel Extended-Length Drill Bits

$27.92

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. They have a black-oxide finish that retains lubricants to improve their wear resistance and chip flow. Black-oxide bits should only be used for drilling ferrous metals. 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: 406X93

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  • Description
Mfr Model 11124
Measurement System Fractional Inch
Drill Bit Size 1/2 in
Decimal Equivalent 0.5000
Maximum Drilling Depth 4-1/2 in
Overall Length 12 in
Shank Type Machining Straight
Finish Machining Black Oxide
Material Machining High Speed Steel
Primary Material Application Cast Iron; Steel
UNSPSC 27112801
Country of Origin USA (subject to change)
Cutting Direction Right Hand
Flute Length 4-1/2 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 4xD
Shank Dia 1/2 in
Primary Material Application ISO Code K; P
Material Grade Machining High Performance
Drill Length Class Extra Long
Sheeter Drill No
Drill Point Length 0.1036 in
Shank Length 7-1/2 in
Coolant Fed Non-Coolant Through
Drill Diameter Tolerance +0.0000 in /-0.0010 in
Secondary Material Application Aluminum; Brass; Bronze; Composite; Copper; Graphite; Steel
Secondary Material Application ISO Code N; O; P

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