Scaled-up Quorn tool and cutter grinder. By hillsgun.
10:26 video:
https://www.youtube.com/watch?v=A1skhxF_flU
9:48 video:
https://www.youtube.com/watch?v=yyLwr-o-o-k
8:27 video:
https://www.youtube.com/watch?v=9K8ezaBzoLw
43:27 video:
https://www.youtube.com/watch?v=bj_x2pd8Y_I