The ideal technique for cutting copper is waterjet cutting. By using a fine abrasive and high-pressure water, precise cuts are produced without thermal influence. This is particularly important with copper, as it has a high thermal conductivity, making cutting methods that use heat, such as plasma cutting, less effective.

Waterjet cutting can also be used to cut complex shapes and thin sheets of copper while leaving the material properties unchanged. The ability to vary the water pressure and the addition of an abrasive makes this method extremely flexible and efficient. Eckert Cutting therefore recommends waterjet cutting for cutting copper.