CPC Subgroup
B23G 1/30 without means for adjusting the threading tool, e.g. with die-stocks (tap wrenches B25B)
Full Title
Thread cutting; Automatic machines specially designed therefor > Manually-operated thread-cutting devices (features of the threading tool per se B23G5/00) > without means for adjusting the threading tool, e.g. with die-stocks (tap wrenches B25B)