This vacuum-ready, low-vibration model produces an ultra high-quality finish and connects to central or portable vacuum systems The 4151 extracts dust and particles through and around the pad, keeping foreign matter away from the motor Virtually all dust is instantly channeled away from the work 6" vacuum sanding pad 12,000 rpm motor with a 3/16" orbit for swirl-free finish Durable, lightweight composite design weighs less than 2 lbs. .