Thanks for the reply Imran.
However, with a pin turned to the hundredth to the size of the hole (if this is concentric it enters precisely) and with a shoulder (like a cap) of larger diameter on the head, so that it acts as a stop and does not fall into the hole, it is not necessary to mark the stop point with the guide, just insert it and reset the DRO. I would also turn a recess on the head of the cap to fix a neodymium magnet inside, so that when it is not in use you attach it to the frame of the sliding table saw and always keep it handy.
