Item #: 74459223Brand: HertelModel #: 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, non-ferrous materials, plastics and other tough-to-machine materials. Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic. Product Specifications Drill Bit Size (mm) 3.99 Drill Bit Size (Wire) #22 Drill Bit Size (Decimal Inch) 0.1570 Drill Point Angle 118 Drill Bit Material Solid Carbide Drill Bit Finish/Coating Bright Shank Diameter (mm) 3.99 Flute Length (mm) 19.05 Flute Length (Decimal Inch) 0.7500 Flute Length (Inch) 3/4 Overall Length (mm) 38.10 Overall Length (Inch) 1-1/2 Spiral Type Fast Spiral Web Configuration Tapered Cutting Direction Right Hand Helix Angle 35 Drill Bit Diameter Tolerance (Decimal Inch) +0.0000 to -0.0005 Shank Diameter (Decimal Inch) 0.1570