I cut a plywood of 11 mm with CNC and made a small speaker box.

It is CNC operation practice.

The end mill is 6 mm in diameter. The actual cutting time is 33 minutes. Cutting speed is 1800 [mm / min], and the end mill retraction distance used is 10 mm. After removing the tab with a saw, finishing it with a file and bonding it is complete.

CNC uses this.
https://www.maker-machine36.com

[summary]
Depth　,Width　,Height　,Number
11.000, 43.000, 100.000 , 2
11.000, 63.000, 100.000 , 2
11.000, 100.000, 125.000 , 1
11.000, 100.000, 130.000 , 1
11.000, 100.000, 136.000 , 2
11.000, 122.000, 141.000 , 1
11.000, 141.000, 147.000 , 2
total , 11

Speaker diameter is 62 mm.

https://denshiman.com/cnc.html