This holder replaces one of the strain reliefs on the Stealth Press spine. It comes in a left and right variant and a variant with and without a peg for the soldering iron tip that comes with the DFH.fm kit's iron. It's designed for M4H4 heat set inserts to hold the insert tips. These inserts are 4mm deep and the holes that I've placed in the model for them are 5.33mm diameter. I've provided a step file and a link to the onshape document I built it in. Enjoy!
https://cad.onshape.com/documents/002554cc927df5f3ac63d803/w/5be66680c6e1020e85d86098/e/b58dee012e7073c2ef09ce75?configuration=List_s8YjBghNj1lXD0%3DDefault&renderMode=0&rightPanel=configPanel&uiState=65f620b1e64d9970a3b1a17a
The author remixed this model.
This replaces a strain relief with a holder for the inserts that come with the DFH.fm kit.