Rotary Broaching

[KBs PensNmore]

Found this on You Tube also, Rotary Broaching or how to drill a particular shaped hole.

https://www.youtube.com/watch?v=M3Ul-s9_MA0

Kryn

[Michael G]

Try these too -
https://www.youtube.com/watch?v=GWyHJVOxKK4

https://www.youtube.com/watch?v=4-3gPWl6wfU

Michael