This paper deals with the topology optimizations of tool holder where three different mass targets were required. The holder was loaded with 499 N.

Weight reduction of the tool holder placed in tool turret can positively affect the bearing durability. The result is also easier manipulation with the holder. Manufacturing constraints, such as overhang prevention, self-supporting and material spreading were defined for needs of direct metal laser sintering production technology during the process of the topological optimization. Structural analyses of three obtained geometries were simulated for evaluation of the stiffness in three main direction of the tool holder. Finally, the weight and the stiffness of each individual geometry was compared and prepared for manufacturing.