This Drywall Sander/Vacuum will turn your large-scale drywall projects into a breeze! The 1-1/2" hose connects easily to most shop vacuums (not included), and uses interchangeable heads that are either 8-hole circular shape or 12-hole triangular, whichever works best for the job ahead. Quick-change heads make it easily to switch from one to the other and the sanding motor is mounted on the sanding head with a solid seal, making for easy, efficient dust collection while you work! Includes 1 each of 60, 80, 120, 180, and 240 grit 8-hole sanding discs and 1 each of 60, 80, 120, 180, and 240 grit 12-hole 11-1/4" sanding triangles to get you started, and a molded case for transport and storage.