Randon Orbital Action: The 3560 is a more aggressive version of the model 3500 for those looking for rapid material removal in a light weight-low profile configuration. The composite motor housing and shroud reduce weight and insulate to insure vibration-free sanding. The unique 4 bearing support and oversized drive head eliminate pad wobble while insuring full pad contact. Includes a patented pad release feature. Replacement Pads: 5136 STD. 6" PSA 5236 Opt. 6" Hookit 5135 Opt. 5" PSA 5235 Opt. 5" Hookit 5108 Opt. 8" PSA 5108H Opt. 8" Hookit Other Specifications: RPM: 10000+ Wt. 2 Lbs 3.5 oz. Air Consumption: 11 cfm @90 PSI PSI Noise Level: 84 dBa