.001 but we can, if we try real hard, get it down to 0.0001. The main thing is the comparator. We have the equipment to grind, lathe, broach, mill, drill, you get the picture. I am NOT gonna try the 14mm pump or anything that requires more the 0.001. I know about high pressures. I have seen pics of water cutting 1" steel

I dont wanna get myself or other guys hurt because of my fiddling. If you suggest not to, then I won't but I wanna take a look at it.
Swank, it should be in my profile now. I just enabled the email thingy.
Jon