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We have been using some ER32 Heat shrink extensions for while now on some of our live tools.
They have been superb except that now one of them you can't fit a tool into.
It for a .125 tool.
We have been heating with a torch and i think that this is most likely our problem.
When i put tools into them i try and heat as evenly as possible. Talking to the guy who uses these tools alot he mentioned that he only had been hitting it with the torch from one side.
I'm thinking that after enough heating and cooling on one side only, turned the bore into an egg.
Does anyone have any insight into this issue. We are going to purchase more heat shrink tooling in the future so this would be an issue i would like to avoid.
As always any and all info is greatly appreciated!
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