COMO HACER LA ESFERA perfecta a mano con este dispositivo | Esfera de piedra

Thanks a lot. For those who try to create a sphere, below is attached the devices or accessory in the form of a link so that everyone can make spheres of stone or some other mineral using a Dremel multitool and a hand drill. Devices used: Diamond tip thick concave ball head: https://amzn.to/3NHXYn2 Thick concave diamond tip: https://amzn.to/48hEb64 Concave Diamond Tip all measurements: https://amzn.to/3RKLNqw Small concave diamond tip for dremel: https://amzn.to/3vn80n9