Small milling hammer. By smallathe. 21:17 video:
https://www.youtube.com/watch?v=czJoCN6jKMk
Previously:
https://www.homemadetools.net/forum/...590#post132566
https://www.homemadetools.net/forum/...641#post167015
https://www.homemadetools.net/forum/...653#post163065
https://www.homemadetools.net/forum/...568#post162690
https://www.homemadetools.net/forum/...477#post158605
https://www.homemadetools.net/forum/...029#post140886
https://www.homemadetools.net/forum/...710#post118689
https://www.homemadetools.net/forum/...802#post100074
