The Oscillating Multi-Tool Dust Extractor Attachment is for use with both the M12 FUEL and M18 FUEL Oscillating Multi-Tools. The Dust Extractor Attachment is designed to help keep your work area clean during sanding applications, and reduce clean up time. The Dust Extractor Attachment fits onto a 1-1/4" and 1-1/2" vacuum hose for easy dust collection.