Yes. It is necessary to use the cutting fluid when rolling thread.

Peeling the rib and rolling thread will produce a lot of heat, and cutting fluid can cool the machine to protect blades and rollers. In addition, the cutting fluid has a lubricating effect, which can save much efforts.

What’s more, water-soluble cutting fluid are good for the bonding of rebar and concrete compared with neat cutting oils. If rolling thread with neat cutting oils, rebars will have oil and then cannot be bonded with concrete fully.