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Rocky Mountain Twist - 9/64" 135° Spiral Flute Cobalt Screw Machine Drill Bit - Best Tool & Supply

Rocky Mountain Twist - 9/64" 135° Spiral Flute Cobalt Screw Machine Drill Bit


Item #: 57612855
Brand: Rocky Mountain Twist
Model #: 95001763

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.
Spiral flutes are constructed of a higher flute angle to remove chips easier.
Product Specifications
Drill Bit Size (Decimal Inch) 0.1406
Drill Bit Size (Inch) 9/64
Drill Point Angle 135
Drill Bit Material Cobalt
Drill Bit Finish/Coating Bright
Flute Type Spiral
Cutting Direction Right Hand
Shank Type Straight
Flute Length (Inch) 15/16
Flute Length (Decimal Inch) 0.9375
Overall Length (Inch) 1-15/16
Overall Length (Decimal Inch) 1.9375
Point Type Split Point
Shank Diameter (Decimal Inch) 0.1406
Shank Diameter (Inch) 9/64
Spiral Type Regular Spiral
Threaded Shank No
Number of Flutes 2
Web Configuration Tapered
Drill Bit Diameter Tolerance (Decimal Inch) +0.0000 to -0.0007
Drill Tip Finish/Coating None
Web Thinning Web-Thinned
Drill Bit Grade Heavy Duty
Series/List SC514
Length Type Regular
$4.51

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