• The Model 504 are orbital sanders with a 3/32" offset
• The smaller rectangular orbit allows better sanding access for bumpers, recessed areas, and new panel prep
• The sander uses standard 2-3/4" Velcro sandpaper rolls
• Velcro pads securely hold scuff pads for easy new-panel prep
• Built-in pad release feature
• 2-¾" x 4" Velcro Pad