Uploaded October 2025 | Updated September 2026, 1 week ago

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I need an internal countersink for a part that I am making. On face value it felt like a near impossible task to do, especially since I only have a manual mill and I only have 12mm of vertical height to work in. In this video I will show you the rather simple method that I tried, and the even simpler method that I almost used.

Countersink on the inside of a workpiece

#machining #millingmachines