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1M191 High-Speed Steel Screw-Machine Length Drill Bits

$1.30

Bulk orders will be discounted, please contact us.

These drill bits have a black-oxide finish that retains lubricants to improve the bits' 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.

Product Number: 1M191

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  • Description
Mfr Model 49425
Measurement System Wire
Drill Bit Size #55
Decimal Equivalent 0.0520
Maximum Drilling Depth 2 in
Overall Length 1-5/8 in
Shank Diameter 3/64 in
Shank Type Machining Straight
Finish Machining Black Oxide
Material Machining High Speed Steel
Primary Material Application Cast Iron; Steel
UNSPSC 23171609
Country of Origin USA (subject to change)
Cutting Direction Right Hand
Flute Length 5/8 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
Primary Material Application ISO Code K; P
Material Grade Machining Heavy Duty
Drill Length Class Screw Machine Length
Sheeter Drill No
Drill Point Length 0.0108 in
Shank Length 1 in
Coolant Fed Non-Coolant Through
Drill Diameter Tolerance +0.0000 in /-0.0005 in
Secondary Material Application Composite; Steel
Secondary Material Application ISO Code O; P

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