Sandvik Coromant 8107476 Hydraulic Tool Holders & Chucks; Shank Type: Modular Connection; Connection Size: HSK63A; Taper Size: HSK100A; Chuck Hole Diameter: 3.93701 in; 100 mm; Nose Diameter (Decimal Inch - 4 Decimals): 2.6772; Nose Diameter (Mm) ( -