It gave a min bore spec that it could read.. it was in the 3" range... if I need to grind the housing I will it only has a single bar in the center for the signal EDIT I know the meter I use to bring home from work had a larger probe than a 1/8"(.125).. I'm sure it was over a 1/4"(.250) and it read great... did you ever try yours
Try mine ? ... reads dead-on(in mm only) on flat stock but not on a curved piece. I have been in touch with the seller trying to see if I can adapt another smaller probe to it ... but they don't know ...yet.
