3 Inch Large 3-Piece Spice Grinder

This is about 2x bigger than any grinder I have previously owned. It grinds herb down pretty fine. IMO there are not enough threads on this. It only takes about a half turn to tighten. One reviewer complained about it being hard to get threads started, but I think they are quite easy. But one time after tightening I thought uh oh I kind of snugged that down a little more tan I usually do. Then I thought nah it should be okay. Well it wasn’t. The threads were seized. I had one pipe wrench that opened enough to grip it, but I still couldn’t budge it. I used a pair of channel lock pliers to grab the edge and barely managed to break the threads free. I broke one of the teeth off and of course left some pipe wrench marks on it. I am still using it, being careful to only just barely snug the threads. I am planning to buy a replacement, but will find one locally.