This OSHA Table 1 compliant dust extractor works with the DCH273 1-inch hammer. It features a dust box assembly that complies with OSHA 1926.1153. Equipped with a filter cleaning mechanism and a HEPA filter, it removes 99.97% of airborne particulate matter 0.3 microns or greater. The dust extractor features a powerful built-in motor for increased suction during high-performance drilling. The 2-second power-off delay ensures dust extraction continues after the drill is shut off. It accommodates drill bit diameters up to 5/8-inch, allowing users to drill overhead for 1/2-inch drop-in anchors.