In article ,
says...
--Oh, one of those. Wast of money; that's why I invented these:
http://www.nmpproducts.com/nmp01.htm



Cute-I've run turret lathes and chuckers with pointers like
that on the dials. One had a couple pointers numbered to
correspond to the turret stations. But I'm talking about a
readout for the quill, not the knee.

I can't justify the $180 the Mitutoyo version sells for,
but would spring for $35 if it's not a total POS.

Ned Simmons