Item #: 84578103Brand: HertelModel #: Features and Benefits High speed steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials. 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 with a higher flute angle to remove chips more easily. Product Specifications Drill Bit Size (Letter) Z Drill Bit Size (Decimal Inch) 0.4130 Drill Point Angle 118 Drill Bit Material High Speed Steel Drill Bit Finish/Coating Bright Flute Type Spiral Cutting Direction Right Hand Shank Type Straight Coolant Through No Flute Length (Inch) 3-7/8 Overall Length (Inch) 5-1/4 Point Type Standard Shank Diameter (Decimal Inch) 0.4130 Spiral Type Regular Spiral Web Configuration Tapered Web Thinning Web-Thinned Drill Bit Grade General Purpose