Tools, work clothing and all necessary materials (and maintenance) must be provided by the employer. If your employer does not provide you with work clothing and you have to provide it yourself, the employer must pay you an allowance of €1.74 per working day.
If you wash your work clothing yourself, an allowance of €0.25 per working day must be paid.
If you use public transport to get to work or to carry out your tasks, your employer must pay 100% of the expenses. They must provide you with a season ticket.