Eli5: in a high pressure water cutting macchine, how does the water jet not cut part of the machine under the object that is being cut?

Question

Eli5: in a high pressure water cutting macchine, how does the water jet not cut part of the machine under the object that is being cut?

In: 81

Answer 1

And it’s not the water that does the cutting but rather the sand or whatever else they add in the water stream to do the cutting . Like bead blasting , it’s not the air