Schunk 1360929 Hydraulic Tool Holders & Chucks; Shank Type: Taper ; Taper Size: HSK63A ; Shank Diameter (Decimal Inch): 1.8900 ; Shank Diameter (mm): 48.0000 ; Nose Diameter (Decimal Inch - 4 Decimals): 1.4173 ; Nose Diameter (Mm) ( - 2 Decimals): 36