Some choice kinds of drilling works are presented within the frame of practical training in drilling. Students can make sure degree of encompassment of the concrete subject matter lectured in terms of lessons and whether they are able to solve scheduled practical tasks in field conditions both by drilling using drilling rig and by the research of diamond drilling tools in laboratories. The students have to be able to find the optimum consecution of drilling works and with the aid of excercise supervisor to apply theoretical knowledge in the practice, furthermore, to choose optimum solution of the scheduled problems. Last but not least, very important goal of this subject is to teach the students to work independently on the concrete tasks by use of drilling technics, to analyse and evaluate measured data and use it by the construction of geological profile (1. part) and to determine optimum work regime of the diamond drilling tools (2. part).