Cleaners, like cutting rollers and peeling knives,make an important contribution to efficient tunnelling. This is because these components, attached to the drill head, are also responsible for the rapid and efficient capturing, transporting and removal of the cuttings. The drill head rotation transfers the cuttings to the centre of the machine and onto the machine conveyor. A defective reamer, therefore, can disrupt the entire drilling process, bringing it to a standstill. To reduce this risk, we leave nothing to chance in the development and material quality of our reamers. Mika reamers are available in different quality levels and can handle the toughest conditions with their extreme robustness and durability.