Mounting Blocks / Plates For EDM, 70mm X 70mm, Used With System 3R Tooling

Description

Mounting Blocks / Backup plates used for EDM.
These clamps were used with System 3R EDM tooling, but do not appear to be made by System 3R.
Approximately 70mm x 70mm x 12 mm (2.75" x 2.75" x 1/2").
I will reduce shipping charges on multiple piece purchase(s).
All used items are being sold as-is.
I do not have the ability to test these items, but I will photograph and describe any problems, issues, or damage to the best of my ability.
Let me know if you have any questions, and I will do my best to answer them.
I am in the process of listing a large amount of System 3R tooling for both wire and conventional / sinker EDM, so check back frequently!