Item #: 46810032Brand: OSGModel #: HP255-1969 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. WD1 is a multi-layer coating that is harder and more resistant to heat than TiAIN. It is commonly used on medium-to-high carbon steels and difficult-to-machine materials. WD1 is a proprietary coating exclusive to OSG Tap and Die, Inc. Product Specifications Drill Bit Size (mm) 5.00 Drill Bit Size (Decimal Inch) 0.1969 Drill Point Angle 140 Drill Bit Material Solid Carbide Drill Bit Finish/Coating WD1 Coolant Through Coolant Through Flute Length (mm) 44.00 Overall Length (mm) 82.00 Flute Length x Diameter Ratio 5xD Shank Diameter (mm) 6.00 Drill Bit Diameter Tolerance (mm) +0.0040 to +0.0160 Web Thinning R-Thinned Series/List HP255