Some of the parker benders are similar to some other brands (Imperial) etc that I have IF we are talking about a similar design. These indeed do a great job. I used to use them doing refrigeration work
There are similar, and cheaper, designs that do a good job, and some will bend multiple sizes. I have (somewhere) LOL a KD or Lisle that wasn't very expensive, I think it does 3/16 1/4 and 5/16
This is a Sears, but similar to what I'm thinking