Shrink Fit Tool Holder and Adapter, Hole Dia. 12.00mm, Taper Size HSK63A, Shank Dia. 24.00mm, Projection 160.00mm, Nose Dia. 24.00mm, Coolant Fed Coolant Through, Balanced to RPM G 2.5@25000 rpm, For Use With Carbide and HSS Tools, Series HSK50A