Where possible drilling is carried out externally which reduces the potential risks to employees and customers. However, when it is necessary to carry out internal drilling, there is currently no method for dust suppression.
Work has been undertaken to attach a cover to small diameter drill bits (up to 15mm) which helps to suppress dust generation. For larger diameter drill bits and core drills, there is the need to use a vacuum with the appropriate attachments. However, the use of the vacuum presents an additional potential trip hazard in confined spaces and adds to vehicle weight issues.