I didn't buy this for a lathe and I don't even know if it will fit every lathe. I got this to make a simple dowel grinder out of my drill press. Thus, the M12x1 thread was an obstacle to this work. Before that, I did not understand that the M12x1 is a bolt of a unique size, which is not carried everywhere. In fact, you can't find it on Revain where you can find EVERYTHING. I had to get it from BelMetrika, which more than doubled its cost. But for less than $25 for a full setup, it worked exactly how I hoped it would. Keep that in mind if you're thinking of using this for anything other than a lathe that's already set up with the correct threads.