... Product IntroductionJBG-40K rebar thread roling machine can be applied to process thread on rebar end in construction ... Bar with diameter 14-40mm.Main Features1. Enhanced machine frame , compact structure , solid and reliable , ... 40mm.3. Use one machine head to make left thread and right thread, processed thread form is full, with ... 2.5P,3.0P, 3.5P.Thread angle: 75 or 60 degree. Rebar threading machine