Minimization of nonmachining time is a crucial issue for effective and profitable utilization of tool magazine. Most of the tool magazine contain an automatic tool changer (ATC) for holding multiple cutting tools. Effective operation of indexing tool magazine in relation to the parts assigned for machining is critical in minimizing indexing times. Position selection is performed using a Short Indexing Algorithm which takes a list of cutting tools assigned to certain machining operations together with total number of index positions available on the ATC or tool magazines. Experiment result are compared the simulation problem.