• Shank Type: Taper Shank
• Taper Size: HSK100A
• Hole Diameter (Inch): 5/8"
• Nose Diameter (Decimal Inch): 1.654
• Projection (Decimal Inch): 4
• Through Coolant: Yes
• All Ground Body
• High rigidity & torque transmission
• Premium balanced to 25,000 rpm
• Comes with certificate