Porter Cable 7345 5" Random Orbit Sander is a replacement for old 7335 sander. Right angled 7345 Random orbit sander features a stronger performance with 22% increase. 7345's stronger 4.5 amp motor allows for higher overload protection. Other features include, pad specific counterweight and a two position side handle for improved control and versatility. This sander is made with 100% ball bearing constuction that has proven reliability under industrial use.