Repousse is the technique of creating a design from the underside of the metal by hammering to form a raised design on the front of the metal. The literal definition in French is “to push back”.
Chasing is the technique of defining the design on the front of the metal.
The same tools are used for both chasing and repousse but the “tiny” tools are used for the detail work on the front (chasing) side.
Ovals, squares, curves, lines, rounds, textured…
Using the correct tool is important but it all starts with correct hand position.