ASME B5.62M pdf download Hollow Taper Tooling With Flange-Face Contact 1-1 GENERAL 1-1. Scope This Standard covers basic toolholder shanks with ahollow 1/9.98 taper,and simultaneous contact faceand taper mating surfaces that are applicable to arange of machine tool applications. Hollow taper shank(HSK shank) Forms A, B, CD,E, Fand T with nominalflange diameters of 25 mm to 160 mm are covered...