Our Company has 2 Model 700 Threaders and we use them alot. They work great with the exception of 2 inch pipe. Were experiencing the same thing on both machines, the threads get chewed up during threading and removal of the die. We have tried new oil and new cutters for the die heads without much success. Anyone else have this problem? Ive done a search and came up with adjusting the cutters in the die head and got the same result. I have an entire new die head on order to see if it will make a difference and rule out the head vs. the machine. My gut tells me its the head because we only have the problem with 2 inch pipe and all of the smaller sizes work fine. Any suggestions are greatly appreciated !!