TY JOUR TI THREAD-CUTTING PECULIARITIES IN HOLES WITH ULTRA-SMALL DIAMETERS KW thread-cutting KW ultra-small diameter KW fine turning KW cuttings section JO Bulletin of Bryansk state technical university AU Kulikov, M.Y. AU Yagodkin, M.v. PY 2016 IS 2016 PB Bryansk State Technical University