National Twist Drill - 20mm 140° Solid Carbide Jobber Drill

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Item #: 58821828Brand: National Twist DrillModel #: 027183AW 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) 20.00 Drill Bit Size (Decimal Inch) 0.7874 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 No Flute Length (mm) 66.00 Flute Length (Decimal Inch) 2.5984 Overall Length (mm) 131.00 Overall Length (Decimal Inch) 5.1575 Web Configuration Tapered Drill Bit Diameter Tolerance (Decimal Inch) -0.0012 to 0.0000 Number of Flutes 2 Web Thinning Web-Thinned Material Grade Micrograin Show more