I'm guessing the 25mm conduit that you are bending is done on a Record or Hilmore plumbers type bender that is a direct handle to slipper roller type? Which means there is no mechanical advantage with that type of machine, the Rotary draw bender which is the black one has a 60:1 ratio due to a 60" handle and the ratchet. You would be able to bend your 25mm conduit with 2 fingers.
