I don't know the lock in question, but is it for removing
a hardened steel spring clip, or replacing
a soft steel ring?
I have not seen a tool for removing a circlip of this kind/placement, and would be very surprised to see one. Two screwdrivers/wiper-inserts should do the job
I am looking for a tool to replace
(EKS-cylinder), and have ordered this from keymam http://keymam.com/product_view.asp?pid=2108
I just borrowed a similar tool. However, it was designed to crimp rings of 1.4mm thickness, while I need for 0.8mm thickness.
If the ordered tool does not fit, I will either modify or make one myself.