hi chaps its a boxford 280 industrial
brand new d1-3 chuck to be honest i had not noticed problems as i was using a 4 jaw and clocking everything
that got tiresome
spindle taper clocks at 0 if i put my finest clock on it and i probably am not as good as the clock
using a cheaper clock
i get runout on diameter of the chuck is less than 1/2 a thou
worst on face less than 1/2 a thou and if i put a
piece of bar in the chuck is 2 thou concentricity anything tighter i switch to the 4 jaw
if i shift the tailstock i can get ban on diameter over the length of 3"
even if i pu the old chuck on i get similar taper towards headstock