Tool holder for vertical slotter. By Topper Machine.
28:06 video:
https://www.youtube.com/watch?v=cGYt7opV1Po
32:12 video:
https://www.youtube.com/watch?v=K3oe8zI6nWM
Related:
34 sets of plans for homemade lathe tool holders
Threading Insert Tool Holder by rossbotics
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