![tool post.jpg tool post.jpg](https://www.hobby-machinist.com/data/attachments/57/57960-5d097026c0668e57bf669d1a82ff1d00.jpg)
![chuck.jpg chuck.jpg](https://www.hobby-machinist.com/data/attachments/57/57961-3c4ddc84995f3fa96cb376e3198d091a.jpg)
![jacobs.jpg jacobs.jpg](https://www.hobby-machinist.com/data/attachments/57/57962-4cddd7f94fe7b331d8009f5759e1a350.jpg)
Just out of curiosity, did the 14n with excessive run out that you mentioned, was that the one with the shorter
chuck body jaw hole part? I've never seen a Jacobs like that with such a short body where the jaw holes end.
No, that one that was different from the other was actually the nicest of the 3 & the one with the lowest IIRC. The one with excessive runout had .006" TIR due to worn/damaged jaws (it was the worse condition one of the 3). I replaced the jaws & TIR is now just under .003". Still within spec but not as great as my other 2 which have .002" TIR with no replacement parts needed.
6mm what, there goes that foreign language again.Are you checking TIR at half capacity? 6 - 6.5mm ? Have you checked it at different capacities?