Tools > Drilling > Masonry Drill Bits & Sets | Bordo SDS Max Vacuum Masonry Drill Bit | *** Adapter Sold Separately *** | Bordo SDS Max Vacuum Masonry Drill Bit | SDS Max Extractor Drill. | All About Bordo SDS Vacuum Masonry Drill Bit | Bordo SDS Vacuum Masonry Drill Bits reduce airborne silica dust by extracting it at the point of drilling. | Holes at the bit tip and the hollow shaft design allow dust extraction through the bit while drilling the hole. | The drilling of "clean" holes greatly increases productivity for chemical anchor preparation by removing the need for the "blow-brush-blow" method used with standard masonry drills.