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National Twist Drill - 7.2mm 140° Solid Carbide Jobber Drill - Exact Tooling

National Twist Drill - 7.2mm 140° Solid Carbide Jobber Drill


Item #: 58824012
Brand: National Twist Drill
Model #: 027226AW

Features and Benefits

Solid carbide provides better rigidity than high speed steel. It is extremely heat resistant and used for high speed applications on cast iron, nonferrous materials, plastics and other tough-to-machine materials.
Aluminum titanium nitride (AlTiN) is one of the most abrasive-resistant and hardest of the coatings. It is commonly used for machining aircraft and aerospace material, nickel alloys, stainless steel, titanium, cast iron and carbon steel.
Spiral flutes are constructed with a higher flute angle to remove chips more easily.
Product Specifications
Drill Bit Size (mm) 7.20
Drill Bit Size (Decimal Inch) 0.2835
Drill Point Angle 140
Drill Bit Material Solid Carbide
Drill Bit Finish/Coating AlTiN
Flute Type Spiral
Cutting Direction Right Hand
Shank Type Straight
Coolant Through Coolant Through
Flute Length (mm) 41.00
Flute Length (Decimal Inch) 1.6142
Overall Length (mm) 79.00
Overall Length (Decimal Inch) 3.1102
Shank Diameter (mm) 8.00
Shank Diameter (Decimal Inch) 0.3150
Web Configuration Tapered
Drill Bit Diameter Tolerance (Decimal Inch) +0.0000 to -0.0010
Number of Flutes 2
Web Thinning Web-Thinned
Material Grade Micrograin
$ 226.91

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