The Porter Cable 7424 XP is the replacement for the older 7424 machine and is a more powerful polisher, so it can achieve greater levels of scratch, swirl and defect removal. It measures 11.5 inches in length, weighs just under 6 lbs and features a brand new 4.5 amp motor which gives better overall performance and a much smoother operation than the previous Porter Cable. The polisher comes with the counterweight that creates the oscillating movement pre installed, a wrench for removing the backing plate and a side handle for increased grip and user control.
Unlike other polishing machines, the Porter Cable 7424 XP has no load speed which means that it will immediately begin operating at the selected speed, which is anywhere from 2500 – 6800 oscillations per minute. The speed is selected via an electronic variable speed dial that is located on the top of the machine for instant easy access, instead of on the rear of the machine as it was on the previous model, which usually meant you had to lift the polisher before adjusting the speed.
The main power switch also has an improved design which helps to give better long term durability. The 7424 XP Takes pads with a diameter of six inches but the thread will also accept smaller sized backing plates to be used with spot pads for polishing tighter and more awkward to reach areas.
The spindle rotor from the original Porter Cable has been kept as it was this that helped make it such a successful machine. The new Porter Cable 7424 XP is very comfortable to hold during use, due to its redesigned body and overall is a definite improvement on the original unit. It is one of the safest and most user friendly machine polishers available and is ideal for both amateurs who want to be able to polish their car properly and for professionals as it is a great tool to have for when the use of a rotary polisher is not required.