Parts for the makita 5 inch arenot cheap. I recently broke the trigger switch on mine and the cost of the switch+shipping is $40. My 4 1/2 in Makita burnup and actuall caught on fire shortly after the 5 inch broke so I was out of grinders. I picked up the 7 inch Northern tool brand last wk for $59. I havent used it very much, but it sounds like the bearings are already making a racket. I also picked up Northerns Welbilt 4 1/2in for $25, another piece of worthless junk. Stalls out with the slighted pressure. Works ok with a cutoff wheel, but as soon as I get back to Notherntool, I am taking both back. I have used and like the Metabo brand, but dont own one.