No wobble as each cup brush is individually tested for correct balancing Appropriate for brushing large surfaces with a medium removal capacity APPLICATION: Use for removal of rust paint or any kind of adherence on any metallic structures ship building stone and concrete etc. No wobble as each cup brush is individually tested for correct balanc ing Appropriate for brushing large surfaces with a medium removal capacity APPLICATION: Use for removal of rust paint or any kind of ad herence on any metallic structures ship building stone and concrete etc.