Remove more paint imperfections with the Porter Cable 7424XP Dual Action Polisher! This polisher has a powerful 4.5 amp motor for enhanced performance. Yet, the Porter Cable 7424XP has the same safe random orbital motion of the original Porter Cable 7424. This more rugged 4.5 amp polisher has 100-percent ball bearing construction. The spiral and bevel gearing provides for smooth operation and efficient transfer of power.A variable speed dial sets the orbit rate between 2,500 and 6,800 orbits per minute - that's a 13% higher peak speed than the original Porter Cable 7424.