Rifling machine,build a simple and precise grooving machine (1/3)

rifling machine,build a simple and precise grooving machine, from what is available in your home.
video for the purpose of science, discovery and passion. Violence comes from humans, weapons born to protect us.

[@hu___1995]

انا اتبعك من اليمن شكراََ لك انت عبقري

[@DaSpineLessFish]

Very cool

[@powderslinger5968]

interesting

[@riskisiswahyudi1958]

Presisi broo

[@Arnor2207]

interesting