Manufacturer Part Number: TM31218|System Of Measurement|Material|Solid CarbideThread Size (mm)|Thread Size (Inch)|5/16-18Thread Depth (mm)|Thread Depth (Decimal Inch)|Thread Type|InternalShank Diameter (mm)|Shank Diameter (Decimal Inch)|0.2500Cutting Diameter (mm)|Shank Type|Cutting Diameter (Decimal Inch)|0.2350Length of Cut (mm)|Length Of Cut (Decimal Inch - 4 Decimals)|0.6250Minimum Nominal Diameter (Decimal Inch)|Minimum Nominal Diameter (Inch)|0.3125Minimum Nominal Diameter (mm)|Shank Length (Decimal Inch)|Shank Length (Inch)|Shank Length (mm)|Overall Length (mm)|Overall Length (Decimal Inch)|2.5000Thread Standard|UNCThread Mill Type|Flute Direction|Right HandMaterial Grade|Pitch (mm)|Series|Cutting Diameter Tolerance (mm)|Cutting Diameter Tolerance (Decimal Inch)|Shank Diameter Tolerance (Decimal Inch)|Overall Length Tolerance (Decimal Inch)|Thread Length Tolerance (Decimal Inch)|Shank Diameter Tolerance (mm)|Number Of Flutes|3Coating/Finish|TiAlNCoolant Through|NoThread Length (mm)|Thread Direction|Thread Length (Decimal Inch)|Teeth Per Inch|18Neck Length (Decimal Inch)|Neck Length (mm)|Product Service Code|UNSPSC Code|