Advanced Auto Parts offers the Griot's Garage 6" Orbital Polisher Kit for $159.99. Coupon code "SCW297" cuts it to $109.99. With free shipping, that's $18 under our March mention (which included a $30 gift card) and the lowest price we could find by $60. This 6" random orbital buffer features a 7-amp 850-watt motor, adjustable handle, and rubberized grip.