THIS ITEM IS VERY DURABLE AND TEETH ARE CLEANLY CUT. THE ONLY SUGGESTION I WOULD MAKE IS, IF YOU PLAN TO PURCHASE, KEEP IN MIND THAT NOT ALL SPUR GEAR CENTER HOLES ARE THE SAME. THIS HAS A PRETTY SMALL CENTER HOLE. NOTHING A DREMEL DIDN'T FIX FOR ME BUT JUST AN UNSEEN EVENT. THE OTHER HOLES BOLTED RIGHT UP.