From where and how much for the tool?
I think that the washer would eventually wear out, but it's a much cheaper fix than new adjusters. I've seen videos of adjusters being stripped down and reassembled, but not for Chrysler products.
Lash adjusters were pretty reasonable. I got a few Mellings for about 5-6 bucks apiece. The tool was the 8516a:
OTC 8516A Camshaft, Rocker Arm Remover/Installer OTC8516A