Abstract: A female attachment for a dental prosthetic device is made by embedding the precision male part of a precision core into a wax-up, leaving the anchor part thereof exposed; sculpting the wax at the boundary line between said precision male part and said anchor part; investing the wax-up and core with investment material; removing the wax, leaving the core and the investment material to form a mold cavity; casting the prosthetic part in the mold cavity to form a female attachment in the resulting prosthetic device; and thereafter removing the core and the investment material.