Dust Extraction Surface Attachment Dust Compartment Type Self-Contained OSHA Table 1 Compliant Part of OSHA Table 1 Compliant Solution Extractor Mounting Location On-Tool Compatible Chuck Style SDS-Max Application Drilling Compatible Hose Diameters 2 3/4 in Wet or Dry Use Dry Maximum Application Diameter 2 3/4 in Solid Bit Optimal Drilling Range in Concrete 1/4 in to 2 3/4 in Product Type Dust Extraction Surface Attachment Compatible with Manufacturer Part Number 8960-20