EDM 3R System Electrode Holder Machinist Tools moldmaking grinding fixture

Description

I am putting up for sale several EDM tool/electrode holders. I purchased or made these holders a long time ago. I used them only a few times for work. Many years ago I switched from using the 3R System to the EROWA System. I placed the fixtures into shelf storage after covering them with corrosion protection in case I needed to use them again. The need to use them again did not arise. I see no need for them in the future either. I have decided to sell them. P
lease see my other listings for similar items.
EDM 3R System Electrode Holder
I made it from A-2 Tool Steel. Drilled and topped 1/4 - 20 screw holes. Double draw heat treated to 58-60 RC. I checked all the holes to ensure that you can screw in the screw in each hole by hand.
Precisely grounded.
The flatness, parallelism, and squareness is
n
within one or two tenths. On top of the fixture is a stamped tool steel and my initials.
Size of block: 2.000 X 4.310 X .765 On end of block there is a step: .5 X .2
The item was very lightly used. Please see pictures. Feel free to ask me any other questions.