I updated my post, I bought them on Amazon, same price with free shipping, and I got them in a couple of days.
The ones that Nelson found look to be the exact same ones at the same price, so either listing should get you the proper tool.
Note that you have to crimp the strain relief on the insulation as a separate step with these, they only crimp one of the two sets of crimps on the connector at a time. That's a small price to pay for the difference in price from multiple tools and one that will do many of the small JST connectors.
I don't think these would be appropriate for any large volumes, but most of the time I just want to crimp one or two wires. I feel these will be quite adequate for that type of task.
