1. Clean dirt, fat and oil with a cleaning agent, according to the instructions on the label. Smaller areas can be cleaned using a solvent. Dry the surfaces with a clean cloth.
2. Remove rust using a steel brush or sandpaper, and polish glossy surfaces until they become matt. Clean the surfaces with a dust brush and cloth.
3. Prime metal surfaces with an anti-corrosion primer.
4. Paint the surfaces once or twice with a furniture paint, diluting it with 10% water if necessary.
5. Clean the tools according to instructions on the label.