Their are many advantages to water jet cutting that make it one of the best methods to cut items. First off since it requires and produces no heat the materials are not warped due to the high temperatures. Also water jet cutting allows for extreme precision that is not available from other forms of cutting.
Water jet
Mohamed Hashish is an egyptian
M. Hood has written: 'A review of water-jet-assisted rock cutting' -- subject(s): High pressure (Technology), Quarries and quarrying, Water jet cutting
Abrasive water jet cutting can cut aluminium, stainless steel and brass with no ternishing. It can also cut ceramic floor and wall tiles, granite, marble, slate and limestone.
Industries that requires the fabrication of machine pieces or the cutting and shaping of a material, such as aerospace and mining, use water jet cutting.
Abrasive water-jet cutting, is when one uses water jets for cutting and removing materials. The water jets may contain abrasive powder, and can be used to cut titanium, marble, and glass.
It depends on the material type and thickness that you are cutting.
Water jet machines are not a health device but rather cutter tools for cutting different types of materials with very high pressure of water or a mixtures of water and a substance of sorts.
air/water blasting media (35 percent); water jet cutting (30 percent), which used concentrated, high-pressure water jets for precision cutting of metals; water filtration (15 percent);
Water jet cutting. At very high speeds, with a very fine jet of water, the water erodes away the steel.water can only cut through steel only if you get jet water!if you watched Richard Hammond's blast lab on the 8th of January 2010 it tells you that answer so that's how i know the answer.
Waterjet uses up to 60,000 psi pressure to project water streams through the cutting head. With the high pressure of the water, and abrasive particles (garnet) mixed in with the cutting stream, the waterjet is able to cut up to 12" thick materials.
I would think that there are no medical benefits to cutting off your feet.