3" (76) diameter Self-Generated HiVac Dynorbital-Spirit efficiently vacuums through 3-hole sanding pad and unique shroud design. Ergonomically designed to the highest standards of Dynabrade technology. Sanding pad is weight-mated to tool, ensuring low vibration and smooth finishes. Tool weight of 1.3 pounds (0.6 kg) minimizes operator fatigue. Innovative V-Seal protects double row balancer bearing from sanding residue for longer tool life. Unique Top Hat seal protects front motor bearing from contaminants while maintaining bearing lubrication. Vacuums directly through the tool's exhaust, with 1" vacuum port connected to optional portable dust collection system. Includes 56144 Vacuum Sanding Pad (3 holes, medium density hook-face). Pad accepts 3" diameter hook-face or mesh-style abrasive discs (sold separately). 3/32" (2.5) diameter orbit. Comfort Platform provides additional hand and wrist support, further enhancing operator comfort. Also offers increased protection against cold air exhaust. (NOTE: Comfort Platform is removable.) Order 59330 Comfort Platform (U.S. Patent No. D610,428) separately, to install on existing tools!