Manufacturer Part Number: B121-J3-19797|Point Shape|BallPoint Shape Code|B121Abrasive Material|Aluminum OxideMaximum Diameter (Inch - Fraction - 4 Decimals)|1/2Maximum Diameter (mm)|Maximum Diameter (Decimal Inch)|Maximum Diameter|Grade|MediumGrit|80Hardness Rating|HardMaximum RPM|45370Hole Size|Shank Diameter (Decimal Inch)|Shank Diameter (Inch)|1/8Shank Diameter (mm)|Shank Length (Inch)|1-1/2Shank Length (Decimal Inch)|Shank Length (mm)|Overall Thickness (mm)|Overall Thickness (Decimal Inch)|Overall Thickness (Decimal Inch)|1/2Overall Length (Inch)|1-3/4Overall Length (Decimal Inch)|Overall Length (mm)|Mounted|YesPackage Quantity|Product Service Code|UNSPSC Code|