%0 Journal Article %T Ways of improvement of working bodies of a dynamic lunkoobrazovatel %A Markov, O.. %A Tsypuk, A.. %A Rodionov, A.. %A Egipti, A.. %K dynamic holemaker, improving %J Actual directions of scientific researches of the XXI century: theory and practice %D 2014 %N 2 %P 4 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov